Beginners Guide

Cacti are popular plants to grow at home (both indoors and outdoors) because they require very little maintenance and are among the coolest looking plant varieties. Because of their unique needs compared to most plants you keep in a garden, there are specific guidelines that need to be followed for care. Many misinformed care strategies may hurt the plants.

These are five common mistakes in cactus care:

1. Caring for all cacti the same way
2. Overwatering and Underwatering
3. Using small containers and bad soil conditions
4. Offering too little sunlight or scorching them
5. Using pesticides incorrectly

Many things in life need to be done in moderation. This is particularly true when caring for cacti as our common mistakes show that too much or too little of something can be equally damaging to the plant. We will cover the common mistakes that arise in cactus care and what you should be doing to make sure that your cacti are appropriately cared for.

Common Mistakes in Cactus Care

Cacti can be very easy to care for when done so correctly, but it can also be challenging as they are very different from plants that we are familiar with. They are native to the Western Hemisphere, often being found in arid environments where drought is frequent. However, there is variation in the environments they are found in, with some being drier and more intense than others.

Cacti have become a popular plant species to grow and take care of at home, providing that care mimics their growth and survival in the wild. The following are five common mistakes in cactus care and how you can modify these mistakes to care for your cactus plants best.

1. Caring for All Cacti the Same Way

Cacti are not only unique from other plants, but they are incredibly unique among each other. There are upwards of 2,000 species found throughout North and South America, all in varying weather and living conditions. Because they are naturally found in different climates, soil conditions, and environments, certain species are best suited for some areas over others.

Cacti all share a common survival strategy to preserve water, but the conditions in which they do it can be quite different. The first common mistake in cactus care is treating all cacti as if they are the same. While there are general cactus care guidelines we will point out throughout this article, not every recommendation will suit all species the same.

To best care for your cactus plants and promote the growth of a healthy plant, you should be looking at specific care protocol for your individual plant types. This will ensure that you are mimicking the conditions that each species would be exposed to in their natural environment. Some species of cacti are easier to care for than others.

For example, the Mammillaria genus of cacti likes to stay dry compared to others in the cacti family (Cactaceae). This means that they will need to be watered significantly less than other cacti for ideal growing conditions. Referring to individual species for best-growing conditions will ensure that the plant can thrive.

There are certain species of cacti that are better suited for home growth than others. Here are some of the easiest ones to grow (listed by genus and offering many species within each):

• Opuntia: Referred to as prickly pear, Opuntia needs bright light as young plants and full sun as adults. They withstand high temperatures and dry environments. Seedlings should be consistently moist, but adult plants are very drought tough. They can completely dry out between watering but need to be soaked.
• Echinopsis: The Echinopsis genus is characterized by bulbous cacti. They like intense light, need thorough watering when their soil is dry, require good drainage, and do well with fertilizer. 
• Mammillaria: These need less sunlight than many other species, do not want lots of water and need fast-draining soil.
• Rebutia: Different species of Rebutia will require varying sun conditions, and most do not want high temperatures. They need their soil to dry before re-watering.
• Parodia: Keep Parodia away from excessive direct sunlight and shade them during the hottest parts of the day. Their soil should remain moist, so regular watering is required.
• Ferocactus: These are often barrel-shaped cacti that appreciate direct sunlight, well-drained soil, and limited water. Only rainfall is required to water Ferocactus unless drought occurs.

If you are considering cacti to grow at home, these are among the easiest to grow successfully. A wide range of species falls under each genus, giving you plenty of cactus aesthetics to choose from.

2. Overwatering and Underwatering

One of the coolest features about cacti, which are considered succulents, is their ability to store water. Most cacti store water in their stems and thrive in environments will little access to water. When caring for cactus plants at home, there is typically always access to water, which can be good and bad. While we water most of our plants every day, cacti are not suited for it.

Two common mistakes deal with how much water is being given to your cactus; you can overwater and underwater it. It is all about finding a happy medium as too much water will overwhelm the plant, and too little will cause it to dry out.

It is recommended that cacti should be watered around once a week, but there may be differences depending upon the specific species.

When watering most cacti, you will want to do so when the soil mixture is near or completely dry. The best watering technique is to soak the soil so that the cactus will be able to pull enough moisture from the mixture. Once the soil appears dry again, this is the signal to re-water (should occur every week or so). Too much water can cause the roots to rot when sitting.

You may also notice physical signs on the cactus that show the impacts of watering at different levels:

• Coloring: If the plants are not watered for considerable amounts of time, green plants will often appear more yellow. In extreme situations, parts of the cactus will turn brown or black, which indicates death.
• Plumpness: If the cactus looks very engorged or mushy looking, you may have overwatered it. Limit watering in this case, so the plant has a chance to return to ideal conditions.
• Wrinkles: If the leaves or outer appearance look shriveled, this is a sign of underwatering. Make sure that containers are sufficiently watered when watering does occur.

The time of year will also determine the watering schedule. The weekly recommendations are for the summer and growing months, while wintertime will require less watering because of dormancy. Only water when soil is completely dry in the winter to avoid drying the cactus out. Soil type will also impact watering habits. Fast-draining soil will require more water as it leaves the container. Larger containers will need more water than small ones.

Always look at the specific requirements of your species but err on the side of underwatering as opposed to overwatering.

Cacti are naturally drought resistant and will be able to handle drier environments as opposed to being overwhelmed with moisture.

3. Using Small Containers and Bad Soil Conditions

The physical conditions in which cactus plants are kept will also have a significant impact on their ability to survive. There are two parts of this common mistake, which include using containers that are too small for growing and bad soil choices. These two factors work together to provide an unsuitable environment for many cactus species.

If you are growing a cactus in a pot, you should examine both the size of the cactus and its roots. Many people will choose too small of a container for their cactus, which will limit the growth capabilities depending on the species. If there are longer roots, you will need a deeper container. It is recommended to choose a container that is slightly larger than the plant.

For both plants in containers and those in the ground, the soil is critical. It is a common mistake to use regular potting or gardening soil for cactus, which does not contain proper draining qualities and can lead to root rot more quickly than cactus mix or soil. You should be mimicking growing the conditions that cacti find themselves in many desert environments.

The best soils for cacti have the following characteristics:

• Rocky: This allows water to easily pass through the soil so that it does not sit and negatively impact the roots.
• Rich in nutrients: Many cactus mixes will include nitrogen, phosphorus, and potassium.
• Contain peat: If kept in extremely dry environments, peat moss is often added to help the plants maintain and hold moisture, so the soil does not dry out too fast. This will vary based on the species you grow.
• Fertilized: To help aid in the growth of your cacti, consider adding fertilizer to the soil every couple of months. They do best with light fertilizing as full-strength can be overwhelming to their composition and growth. Some soils are enriched with fertilizer and will not require additions. Phosphorus-rich solutions are best for growth.

The containers you plant the cacti in should also have holes at the bottom to allow for this drainage to occur. Without holes, the soil remains moist, leading to premature death and decay of the roots. As cacti proliferate, they need to be repotted every two to three years so they have access to fresh soil with new nutrients.

4. Offering Too Little Sunlight or Scorching Them

Sunlight is crucial to the growth of all plants for photosynthesis. Cacti do engage in photosynthesis, but it is CAM photosynthesis, allowing them to maintain moisture by collecting carbon dioxide at night. The amount of light given to cacti is one of the most important factors in keeping the plant healthy. A common mistake is providing them with too little or too much light.

There are two main issues where sunlight is concerned:

• keeping them indoors where there is limited light
• leaving them outside in intense sun that can burn the plant

You want to provide a good light balance for the plant, which will largely depend on the species you are growing. Some cacti require indirect sunlight, bright light, or a restriction on the hours exposed.

If your cactus is receiving too little light, here are some common solutions:

• Keep it near a window: To avoid burning but allow for more light, keeping a cactus near a window will give it the light it needs without high intensity.
• Use artificial lighting: If you cannot provide enough natural light, artificial light will work. You will just need to make sure it is exposed to these lights for longer as they are not as powerful or strong as natural lighting will be.
• Move it outside: Many species will thrive in outdoor environments with ample sun. You can always put it in an area that will be partially shaded if it cannot withstand direct light all day.

A common misconception is that cacti should be left in full sun all day since they are naturally in the desert. For some varieties, this is absolutely true and they need lots of light for growth. Others may be more intolerant, especially if it is a hot and intense sunlight. Brightness may be more important than direct sunlight, which can be achieved near a window for indoor plants.

Most cacti will require 4 to 6 hours of sunlight per day, with specific species being suited for full sun.

Some cacti are found in tropical environments rather than deserts, so intense sunlight is not going to allow them to thrive. Understanding your specific species will help determine this! Cacti can get a sunburn and they will tell you with yellowy skin color. If you notice this, take the cactus out of direct sunlight and grow it either indoors or in areas that will receive shade.

5. Using Pesticides Incorrectly

Because we want to keep bugs and insects off our plants for optimal growth, it is a common mistake to use harmful pesticides on your cacti. Most cacti naturally deter bugs and do not really deal with this problem as much as they do bacterial and fungal disease. When bugs do develop, you need to make sure proper insecticides are used as to not damage the plant.

Bugs will feed on the nutrients accumulated in leaves and stems, with the most common pests being:

• Mealybugs: These are dangerous to the plant and will attack it from the stems and the leaves. They are small white bugs that reproduce quickly and will damage the cactus. Try removing with water or tweezers before chemicals. Neem or horticultural oil and rubbing alcohol solutions can also be used before more intense insecticide applications.
• Scale: Another difficult pest to remove, scale insects are often found in warm environments (perfect for cacti) and produce honeydew which can contribute to mold creation. If not addressed, leaves will die and it can kill the plant. Similar treatment methods can be used as mealybugs, but armored scales are more difficult to remove. Early intervention is necessary for effective removal.

One of the most common ailments a plant faces when pesticides are involved is phototoxicity. When pesticides are combined with sunlight, they can produce a chemical reaction that is similar to that of a sunburn on the cacti. This will result in burning of the cactus skin and is a direct result of a grower’s application of a pesticide.

The best way to both use a pesticide and prevent phototoxicity is to apply pesticides when direct sunlight is not present. Application will kill bugs or pests but have limited impact on the surface of the plant as long as contact with sun is not made. When the pesticide is left on for the amount of time it needs to kill the bugs, wash it off before the plant will be exposed to sun again.

Prevention is the best way to avoid cactus damage related to pesticides. Make sure all pesticides used will not damage the plant upon impact. Using a cactus-specific solution will help to keep your plants healthy and prevent the infestation of bugs or insects on your plants.

Taking Best Care of Cacti

Cacti are incredibly strong plants but they are also sensitive and should be treated with care. They are best served being slightly neglected over being micro-managed with too much water or interference. Our best advice for avoiding the mistakes mentioned throughout this article is to research the specific cacti you will be caring for.

Because ‘cacti’ is a such a large plant grouping, there is not one set of directions that will apply. The common mistakes apply to all cacti, but which ones will be more resilient to either end of the spectrum is largely dependent on the plant you have. Cacti are excellent for homes, and compared to most plants, are beautiful and low-maintenance additions.

Cactus is an amazing plant that you can add inside or outside of your home. While they are relatively low maintenance, ensuring the health of your cactus does require some work on your part. One thing that many people need to research before adding a cactus to their home is the different types of cacti and what to expect from each variety.

Specifically, many people ask: which cactus has flowers? This is somewhat of a trick question because all cacti are flowering plants, and every cactus is capable of blooming once it has reached maturity. However, whether a cactus will bloom is highly dependent on their age and the care the plant receives.

While all cacti are flowering plants and can flower, many find it easier to bloom than others. There are a few species that are more likely to bloom, and those are in the Mammillaria, Gymnocalycium, and Parodia family. But, cacti can produce beautiful flowers that feature impressive, colorful displays.

Which Cacti Are More Likely to Bloom?

With proper care, your cactus is almost certain to bloom at some point. It needs to reach maturity and have a regular period of dormancy to bloom properly.

One of the best ways to guarantee that you are getting a cactus that will bloom is to purchase one that is healthy and already in bloom.

If you are new to the cactus raising world, you will want to purchase a type that is easier to bloom and more likely to produce flowers. When you are shopping for a cactus, look for some of these varieties:

• Easter cactus or Rhipsalidopsis – The Easter cactus comes in a variety of bloom colors, and they are usually in bloom at the time of purchase. The flowers featured range from red, white, orange, peach, lavender, and pink. To set buds, they need cooler temperatures and longer hours of darkness.
• Garnet or Dwarf Cacti from Rebutia cactus genus – These cacti are vigorous growers that flower quite readily with proper care. They feature a large, brightly colored flower which arises from areoles. The flowers are usually found around the lower portion of the stems.
• Christmas cactus or Zygocactus – Christmas cacti are one of the only ones on our list that are not naturally grown in a dry or arid environment but are naturally found in the rainforests of Brazil. It is important to water these cacti more than other types. Also, when they look as if the blooms are about to open, you will want to ensure proper watering and keep the plant cool.
• Pincushion cactus from Mammillaria family – These cactus plants bear funnel-shaped flowers with a wide variety of colors like red, yellow, pink, white, and green. The flowers will later develop into often red-colored fruits that resemble a berry or are more elongated.
• Hedgehog cactus varieties – There are a variety of hedgehog cacti that all feature colorful flowers, and most have edible fruits. The flowers open after the spring rains from February to May. The flowers featured are magenta, pink, purple, and lavender, and the blossoms last for five days opening each morning and closing at night.
• Prickly pear Optunia cactus – Most feature yellow, red, or purple flowers on these cacti that vary in height from less than a foot up to six or seven feet. These cactus plants feature pads, which are edible and vary in size, shape, and color.
• Bolivian or Lobivia cacti – This cactus blooms in the spring and summer with large flowers that are in vibrant red, yellow, or orange. They blossom along the sides of the stem and never on top. To blossom, you will want to provide the cactus with proper vernalization keeping it in a vegetative state during the winter.
• Notocactus or Ball Cactus – To encourage flowering, allow the plant to enjoy a cooling period in the winter and dramatically cut back watering. You will want to continue to water the plant periodically but provide them this time of dormancy.

How Do You Choose a Healthy Cactus?

Of course, choosing a flowering cactus variety is one thing, but making sure it’s healthy enough to bloom successfully is another. To make sure the cactus you choose is healthy, you will want to look for the following:

• Check the outer appearance. The cactus trunk should be robust and firm to the touch.
• During cooler months, like fall and winter, you may notice the trunk is wrinkly, but this should not be an issue.
• The cactus’ spikes should be dense and have good color. The spikes are a great indication of the overall health of the plant.
• Do not buy a cactus that has a “fake” bloom or flower present. Some locations will add fake decorative flowers to their plants, which makes them more prone to get infectious diseases. Also, removing the fake flowers will leave a blemish on the plant.
• Look for any signs of sickness or inadequate care. You should be able to notice any spots or bruising. A weak or pale trunk is a sign of a chlorophyll shortage in the plant’s tissue.

How to Care for Your Cactus

Once you have purchased your cactus, it is time to begin caring for your new plant and encouraging blooming. You want to ensure you are providing your cactus with the right environment to ensure annual blooming. Most cacti need bright, hot sunlight during the growing season and several months of cooler, less bright sun during the winter months.

Where to Place Your Cactus

The best way to ensure that your cactus blooms is to mimic the natural cycle that the plants would go through outdoors. If you are planting your cactus outside, you will be in less control of the environment that the plant is in. However, if you live in a dry, desert-like area, many spiny desert cacti do much better outdoors than they do indoors.

However, if you are keeping the plant indoors, to encourage blooming, you will want to put the plant through phases similar to those outdoors. Many bloom in response to a cool, dry, dormant period or during the winter. This means that from around September to April, keep the cactus in bright yet indirect sunlight at about 50 degrees and water more sparingly.

During the growing season, which is during spring and summer, indoor cacti do better in a sunroom or south-facing windowsill. This allows the plant to receive the most sunlight, and they need maximum light and heat during this time. You will also want to turn the plant regularly for even light exposure. If you do not have an area that has an abundance of light, some cacti thrive in artificial light.

When to Water Your Plant

While cacti are desert plants, they do still need an occasional watering to guarantee proper growth. Similar to the amount of light they receive, the amount of water you provide should vary depending on whether it is the growing season or during the dormant months. During the growing season, the plant will need more water than during the dormant season.

Most cacti have adapted to very little rainfall, and even indoor plants have these same hardy characteristics. You will want to water the plants one every two or three weeks. Often, it is best to water on the less often side than too much as these plants can easily rot in oversaturated soil.

An easy way to tell if watering is needed is to feel the soil that the plant is in. You should allow the top two inches of soil to dry out before you water the plant again, at this point water thoroughly until it runs out of the bottom of the pot. You will then empty whatever drainage tray you have present to avoid allowing the plant to sit in extra water.

When to Fertilize Your Plant

Compared to most other plants, cacti do not need regular feeding, and adding fertilizer is more of an owner preference. If you do want to add fertilizer to your plant, opt for a general-purpose houseplant fertilizer that you can find at most lawn and garden stores. Follow directions on the packaging and never overfeed the plant.

You should only be fertilizing the plant in the spring and summer months. NO fertilizer should be added during the dormant period. You should also note that overfeeding the plant will not make it bloom.

When to Repot Your Plant

Cacti are universally known for being slow growers, so the need to repot the plant should not be very often. (They also do not need regular pruning or trimming, but you can do this if needed.) However, over time, there will be a need to repot the plant if it outgrows its current pot, but this is likely only to happen once every three or four years.

You can tell if the plant needs repotting because the roots will tightly fill the inside of the container. Also, some cactus plants will become too large to stay stable in the container. If you want to repot your cactus, you have to pay extra care due to the spines of the plant. You should always use some form of tongs, gloves, or a folded towel when handling the plant.

Make sure that you repot your plant in a potting mix that is designed for cacti and succulents. Do not water your cactus for a week after repotting.

When Will Your Cactus Bloom?

If you follow the proper steps laid out above, your cactus should be in the proper environment for blooming. However, the age of the plant and overall health of the plant can be an important factor. If your plant is not mature, it will not bloom.

As mentioned, the best way to ensure that your plant is going to bloom is to buy one that already has a bloom present. This means that the cactus is at the age of maturity and can bloom. You will still want to provide the proper environment for your plant so it can continue to bloom once in your home.

A significant number of gardeners out there often think that cacti plants don’t need fertilizer. However, that is not the case. Just like any other plant, cacti need nutrients to help them grow and thrive. While they can get some of the nutrients they need from the potting mix; commercial fertilizer will help them grow fast and bloom beautifully.

So, when should I fertilize my cactus? The best time to feed your succulent is during early spring just before the growing season kicks in. But, if you are well organized, consider setting up a schedule that allows fertilizing your plant two or three times per year; in spring, summer, and fall. Be careful not to feed your plant with fertilizer that is too strong because the effects can be devastating. Most cacti species will appreciate fertilizer that is high in phosphorus than nitrogen but diluted to its half or quarter strength. A 5-10-5 (NPK) solution usually works well in most situations.

Read on to find out everything you need to know about feeding your cactus plant. We discuss essential tips that will help you take care of your plant in the best possible way to help you achieve success.

Cacti Fertilizer Needs

Alongside soil, watering, and light, cacti plants fertilizer needs are quite different from other plants. In the natural conditions where these plants grow, feeding is limited due to the inadequate availability of nutrients. Therefore, they have developed a coping mechanism of how to survive on limited nutrients.

You must stick to this principle to avoid hurting your plant with an excessive supply of nutrients. Generally, cacti plants don’t require heavy fertilization. In fact, plant experts say that if you want to achieve better results, strive to replicate the natural growing conditions of the plant.

To get the best out of your plant, consider giving it multiple small feedings instead of one gigantic flood of fertilizer.

How Do You Know When It’s Time to Feed Your Cactus?

Cacti plants require fertilizer during the active growing season more than any other time. In most cases, the active growing season starts in spring and stretches to early fall. Therefore, you need to come up with a feeding schedule that focuses on fertilizing your plant during this time.

Some gardeners prefer using a time-release feeding mechanism that will automatically feed the cactus for relatively long periods, such as three months, to make sure they do not miss feeding the plant during the peak time.

The primary objective here is to ensure you provide the nutrients when the plant needs them. Keep in mind that most cacti plants wake up from dormancy in spring, and this is the time you will start to notice new growth.

If you are a beginner, it might take you some time before you establish an appropriate feeding schedule for your plant. Do not be in a rush to do things. Start small and improve with time. If you have a plant that grows in winter, make sure you fertilize it at that time.

How Often Do You Need to Fertilize Your Cactus Plant?

Now that you know cacti fertilizer requirements and when to apply the fertilizer, the next thing you need to know is how often you need to do it to achieve better results. However, before you decide how often you need to feed your plant, remember one thing; cacti plants are adapted to growing in soils that are poor in nutrients.

This is the primary reason why these plants tend to grow slowly compared to other plants. Therefore, whatever you do, ensure you stick to this principle as much as you can. Avoid overfeeding at all costs because it will only cause more harm than good.

While you can fertilize your plant as often as you want, most plants will generally be fine with one feeding session each year.

Proper and regular fertilization speeds up cacti growth, and that is what you need. Some gardeners with a huge plant collection even prefer mixing a small amount of fertilizer every time they water their plants, and it works fine.

Generally, it is a good practice to feed your cactus two or three times a year. Make an effort to apply fertilizer just before the onset of their growing season and leave them to rest during the dormancy season.

How to Tell If Your Plant Needs Fertilization

The best way to know when to fertilize your cactus is by observing its growth. When the plant grows fast and healthy, you can skip fertilizer for some time.

However, when it starts showing signs of nutritional deficiency, that’s the perfect time to ring the peak time and give it a dose of fertilizer.

Cacti plants that show signs of nutrient deficiency have pale, yellowish leaves.

If you notice the color and texture of your plant’s foliage changing, it means your cactus needs feeding. Therefore, make sure you apply fertilizer immediately to restore the health of your cactus.

How Much Fertilizer Does Your Cactus Require?

Since most of us purchase general-purpose fertilizer for our cacti plants, you need to adjust the dosage accordingly to meet the needs of your cactus. Most cacti species require less fertilizer than other plant species. Therefore, you will need to dilute the fertilizer accordingly.

If you fertilize regularly (once every month), make sure you are using small amounts of fertilizer- about one tablespoon of fertilizer in three or four gallons of water. 

However, if you only fertilize your plants two or three times in a year, consider using one tablespoon of the fertilizer in one gallon of water.  General recommendations suggest diluting your fertilizer to ½ or ¼ of its strength before you apply it.

Be careful not to use a high concentration of the fertilizer to avoid causing harm to your plants. Plant fertilizer that is not properly diluted is caustic and can cause severe fertilizer burn, which will damage roots and eventually kill your plant.

Highly concentrated fertilizer can also cause a sudden change in the pH of water. The ideal pH for most cacti plants and other succulents is around 6.5. When properly diluted, fertilizer cannot impact on water and soil pH.

However, highly concentrated fertilizer can significantly lower the soil and water pH, which is dangerous to the survival of the plant. In case you don’t know how to dilute the fertilizer appropriately, seek help from a plant expert.

Signs That You Are Overfeeding Your Cactus Plant

You should avoid overfeeding your cactus plant by all means. Overfeeding can lead to various plant problems, such as fertilizer burn and root rot.

Some of the common signs that you are overfeeding your cactus include yellowing foliage, wilting leaves, poor growth and development, and brown spots on the stem.

If you suspect your plant is getting too much fertilizer, stop feeding it immediately until the symptoms subside.

Once the symptoms subside, adjust your feeding schedule accordingly and stick to it. Doing this will help you achieve better results without risking the health of your succulent.

Can I Use Mineral Fertilizer to Feed My Cactus?

Mineral fertilizer is a popular choice for many gardeners and farmers because it is readily available, affordable, and easy to apply.

But while mineral fertilizer may be suitable for other plants, you should refrain from using it on cacti since it produces an unbalanced ratio of nitrogen and phosphorus.

Regularly applying mineral fertilizer to your cactus can cause more harm than good because it can cause root burn, eventually leading to your plant’s death.

So, if you plan to feed your cactus, use a balanced liquid, slow-release organic fertilizer, or an all-purpose gardening fertilizer specifically formulated for cacti plants. This will help you achieve better results without risking the health of your succulent.

Remember to dilute the fertilizer appropriately before applying it to your plant. As mentioned earlier, using an undiluted or too-strong solution on your cactus can lead to root burn and other problems.

So, ensure you get the right ratios when preparing the fertilizer solution for your cactus.

Fertilizing Indoor Cacti

Many of us might have discovered the beauty and low-maintenance of growing cacti plants in pots. Potted plants are a welcome beauty to our indoor spaces and will always make you feel better and happy.

While growing cacti plants in containers is more of a low-maintenance option, you still need to feed them regularly to achieve better results.

Keep in mind that cacti plants grown in the ground get most of their nutrients from the surrounding soil. The numerous amounts of microorganisms in the soil constantly break down organic matter, adding nutrients to the soil.

However, the potting mix you use in your growing container doesn’t undergo this process. Therefore, potted plants need supplemental nutrients to thrive. The additional nutrients come in the form of fertilizer.

Below is an outline of the essential things you need to keep in mind when feeding your indoor cacti:

• Consider using a liquid, low-nitrogen, and high-phosphorus fertilizer, or find an appropriate organic fertilizer alternative.
• If you water your potted cactus regularly (at least twice every month), apply fertilizer at its quarter strength. Don’t go beyond this proportion because it may be dangerous.  If you don’t water your plants regularly, consider using fertilizer at its ½ strength.
• The best time to apply the fertilizer is when you are watering your plant. Generally, you should start watering your indoor plants at the start of spring through summer and early fall. Do not water your plant during winter unless it is absolutely necessary.

Inducing  Flowering with Fertilizing

If you are like most people, your biggest joy is to see your cactus bloom and beautify your home. Unfortunately, not many people enjoy the privilege of seeing their desert plant flowers. Our bonus fertilizing tip may help you with that problem.

One of the secrets our experts have learned over many years of growing cacti is that proper fertilization can get your plant bloom almost on-demand.

We know how useful this technique can be because some cacti species don’t bloom easily. Some may even take up to 30 years before they start flowering!

The secret to getting your cactus plant flower fast is to add a small amount of dissolved ammonium sulfate to the water. Alternatively, you can dissolve the ammonium sulfate powder into the water directly.

Ammonium sulfate is a specialty plant fertilizer that is hard to find at local garden shops, but you can find it online.

Make sure you apply the ammonium sulfate early in spring when your cactus plant is just coming out of the dormant winter phase. This is the time your plant is starting to prepare for the flowering season that mostly happens in summer.  Therefore, the ammonium sulfate is meant to give it some little head start.

Since you don’t need a lot of ammonium sulfate to do the trick, one bag should be enough to last for years.

Final Thoughts

Fertilizing your cactus plant shouldn’t be a difficult task. We hope the information you have read in this post provides you with a good headstart you need to do a good job. So, if you are now itching to fertilize your cactus, find a good fertilizer, and get started.

Also, if you have enjoyed reading this post, and you want to share it with your friends, feel free to hit the share button and keep the conversation going.

Most of us can agree to the fact that cacti plants are some of the hardiest and most resilient plant species in the world. Generally, they are low-maintenance plants that need little care to thrive. These plants can store water for a relatively long period and adapt to different environments quite well. But the big question is, do cacti plants require fertilizer to survive? Can these plants thrive and bloom without any form of fertilization? We are here to help you understand the right thing to do.

So, does a cactus need fertilizer? The simple answer is yes.  Just like any other plant, cacti need nutrients to thrive and bloom. Occasional fertilization helps the plant replenish the essential nutrients it has used from the soil throughout the season. At minimum, fertilizing your cactus plant at least once or twice a year is a good thing to do. However, if you are well organized and can set up a good schedule, fertilizing it three times a year (in spring, summer, and fall) can yield great results.

Keep reading to understand everything you need to know about fertilizing your cactus plant and how to do it properly.

Before we start, here is a list of our favorite and recommended Fertilizer (Here)

Why Is Cactus Fertilization Important?

What is the first thing that hits your mind when you hear about cacti? Most probably, you picture a thorny desert plant that is used to surviving in hostile environments. You probably think the perfect environment for these plants is a harsh desert with two weather extremes; longer periods of no rainfall and shorter periods of sporadic rains.

You picture a plant that must always strive to absorb and store as much water as possible whenever it rains to survive. But did you know that there is the other side of a cactus plant, especially when it is domesticated?

The moment you decide to start growing cacti plants in your indoor or outdoor garden, you should be prepared to treat them right to achieve the results. Fertilizing your plant can help to keep it happy and healthy, no matter the season.

Just like any other houseplant, feeding your cactus will help it adapt, actively growing, and flower beautifully. The right kind of fertilizer applied the right way and at the right time helps your plant obtain all the necessary nutrients needed to thrive.

Furthermore, proper fertilization encourages healthy growth and flowering.

Now that you know why it is essential to feed your plant, it is also important to know the right type of fertilizer to use and how to fertilize the plant correctly.

Types of Cactus Fertilizers

As mentioned earlier, fertilizers contain essential nutrients your plant requires for healthy growth. Cactus fertilizer can either be organic or inorganic and are mostly available in powder, liquid, solid, or granular form.

A significant number of gardeners prefer using inorganic fertilizers because their chemical composition is consistent.  This doesn’t mean organic fertilizers are bad, but most of them may lack essential elements which might cause a deficiency. You may also be forced to use them for a prolonged period to achieve better results.

The main elements of cacti fertilizers include:

1. Nitrogen (N)

The primary purpose of nitrogen is to encourage good top growth. It also plays a critical role in building protoplasm, protein, and other essential components of plant cells.

2. Phosphorous (P)  

Phosphorous/phosphate encourages good root growth to provide the plant with strong anchorage. This mineral element also helps in seed germination (in case you want to propagate your cactus by seed) and ripening of fruit.

3. Potassium (K)

The primary purpose of potassium is to encourage good flowering and development of fruits. You will need a fertilizer that is high in potassium when you are trying to make your cactus plant bloom.

During spring (when your plant is in an active growth cycle), consider using a low nitrogen release fertilizer. A 5-10-5 (NPK) compound works best. Carefully mix your fertilizer in the potting mix, and it will keep your cactus plant happy until summer.

Another good alternative is to use a water-soluble fertilizer. Once you have obtained your water-soluble fertilizer, mix ½ tablespoon per gallon of water and spray carefully onto the base of your plant.

When using water-soluble fertilizer, consider applying the fertilizer at least once every two weeks during the active growth season.

Water-soluble fertilizer tends to work best for desert cacti than using a granular mixture. However, both methods are quite good, and the final decision will largely depend on what you prefer.

During the dormant period (winter), do not feed your plant with fertilizer because it is in a “resting” mode. 

What Is the Best Fertilizer for Your Cactus Plant?

Now that you know the types and major components of cacti fertilizer, you may be asking yourself how to determine the best fertilizer for your plant.

Before we dive deep into the selection criteria, there are a few things you need to keep in mind.

First, you should know that cacti plants are not heavy feeders. This means they do not require a lot of fertilizer to thrive. In fact, these succulents tend to respond well when fertilizer is applied at a half or quarter strength.

Also, you should keep in mind that strong fertilizers, especially those with high nitrogen component, may cause problems to your plant. Although most cacti plants do not require a specific fertilizer blend, they often do well when fed with a highly diluted multi-purpose fertilizer.

Always go for a low-nitrogen, water-soluble fertilizer for better results. Use a 5-10-10 (NPK) fertilizer blend or 10-10-10 (NPK) diluted to its ¼ strength. You can also come up with your own custom blend by combining a 5-10-10 blend with a 1-7-6 blend.  The resultant blend may help in maintaining a consistent amount of nutrients in your potting mix.

The bottom line is to ensure you are feeding your cactus plant with the best possible blend of fertilizer. A few manufacturers sell already diluted fertilizer ready for use.  Feel free to find one if you do not want to handle the dilution process by yourself.

Signs That Your Cactus Needs Feeding

The truth is that cacti plants are highly sensitive to fertilizer. As a result, you must watch out for signs of nutrient deficiency before you consider feeding them.

Your cactus’ leaves and stems will become yellowish if it is not getting enough nutrients. You may also notice that the overall growth rate has significantly slowed down. This is an indication that your plant requires feeding.

But it doesn’t mean that the appearance of these signs indicates that your cactus needs more fertilizer.

Stressful conditions such as prolonged dryness and too much water can deprive your plant of vital nutrients.

If you are uncertain, water the soil deeply before adding a diluted fertilizer solution. Give your cactus time to respond before adding more fertilizer.

Fertilizing Your Cactus Plant

As the growing season approaches, take time to inspect your plant regularly. Consider inspecting it at least once every week and check for signs of new growth such as fresh needles, new leaflets, or increased size. You should only start feeding your plant when there are signs of growth.

One important thing you need to keep in mind when fertilizing your plant is to use your fertilizer sparingly. Too much fertilizer can lead to poor root growth and stunted growth.

If you are using a 10-10-10 (NPK) or 5-10-10 fertilizer blend, be sure to dissolve one tablespoon of the fertilizer in one gallon of water.

Use the resultant mixture to water your cactus plant until the soil is completely moist. However, you need to be careful to avoid overwatering your plant since it may have adverse effects on your plant.

If you are using a 1-7-6 (NPK) fertilizer blend, consider using the slow-release method to feed your plant. Take one tablespoon of the 1-7-6 (NPK) fertilizer blend and mix it with one gallon of water. Use the mixture to water your plant sparingly.

When watering a potted plant, allow the mixture some time to sink in properly.  Also, make sure you are pouring the mixture slowly to allow the plant enough time to absorb it and drain out whatever is excessive.

Always check if the topsoil of your container is completely dry before watering again. This should happen after approximately two weeks.

No matter how you choose to feed your plant, remember the fact that you are not supposed to overfeed. You might think you are doing the right thing, but overfeeding is dangerous to your cactus the same way overwatering is.

Essential Things to Keep in Mind When Feeding Your Cactus Plant

• Overfeeding may cause more harm than good. Applying too much fertilizer can cause severe burns or even death.
• Be careful with your plants during summer if you are using chemical fertilizers. A slight mistake can be catastrophic.
• Know the type of fertilizer that will work best for your plant. If you have no idea where to start, consult experts.
• Always start slow and improve with time if you don’t see the desired results.
• Fertilizer can damage recently potted or repotted cacti plants. Consider delaying fertilization until after your cactus establishes itself in the new pot. This occurs after two to three months.
• Some cacti species, such as the holiday cactus, are usually dormant in summer and active in winter. Therefore, for such plants, develop a reverse fertilization schedule so that you feed them at the right time.

When Is the Best Time to Feed Your Cactus?

The best time for fertilizing your cactus plant is during the growing season, usually from late spring to early fall.

Consider applying the right fertilizer once every two weeks only when you notice new growth in your plant.

However, if you are using a slow-release fertilizer blend, consider fertilizing your cactus every three months instead. Take time to observe your plant and adjust your fertilizing schedule accordingly.

At the end of the day, every cactus is unique and different, so pay attention to your plant’s needs when creating a fertilizing schedule. Most importantly, remember not to overfeed or overwater your cactus.

What Happens If I Overfeed My Cactus Plant?

Overfeeding is as detrimental to your cactus plant as overwatering. Too much fertilizer can burn the roots and leaves of your cactus, leading to stunted growth or even death.

Moreover, excess fertilizer might wash away essential trace elements from the soil, resulting in nutrient deficiency.

Therefore, if you suspect you have overfed your cactus, withhold the fertilization immediately.

Consider flushing the soil with large amounts of water to eliminate any excess fertilizer and restore nutrient balance in the soil.

Furthermore, if the leaves of your cactus are yellowing or wilting even after providing optimal care and fertilizing correctly, consider consulting an expert for help.

They will diagnose the exact problem and provide professional advice on how to maintain the health of your cactus and restore its beauty.

Can I Use Organic Fertilizers on My Cactus?

Yes, organic fertilizers are as effective in providing essential nutrients to your cactus as chemical fertilizers.

These fertilizers usually come from natural sources such as guano, bone meal, compost, earthworm castings, and fish emulsion.

Organic fertilizer is an excellent choice if you are looking for an eco-friendly way to feed your cactus.

Moreover, these fertilizers also help improve the structure of your soil over time and promote microbial activity in the soil.

Final Thoughts

Providing good growing conditions and following a proper feeding schedule are critical elements you need to adhere to when growing cacti plants. Doing things right will give your plants the best chance of staying healthy and happy throughout the year.

Now that you know how to fertilize your cactus, don’t be afraid to go out there and practice what you have learned here. Go create your own beautiful and happy cactus gardens and enjoy life!

Hope you enjoy this article, here is a list of our favorite and recommended Fertilizer (Here)

Cacti are popular plants to grow at home (both indoors and outdoors) because they require very little maintenance and are among the coolest looking plant varieties. Because of their unique needs compared to most plants you keep in a garden, there are specific guidelines that need to be followed for care. Many misinformed care strategies may hurt the plants. 

These are five common mistakes in cactus care: 

1. Caring for all cacti the same way 
2. Overwatering and Underwatering 
3. Using small containers and bad soil conditions 
4. Offering too little sunlight or scorching them 
5. Using pesticides incorrectly 

Many things in life need to be done in moderation. This is particularly true when caring for cacti as our common mistakes show that too much or too little of something can be equally damaging to the plant. We will cover the common mistakes that arise in cactus care and what you should be doing to make sure that your cacti are appropriately cared for. 

Common Mistakes in Cactus Care

Cacti can be very easy to care for when done so correctly, but it can also be challenging as they are very different from plants that we are familiar with. They are native to the Western Hemisphere, often being found in arid environments where drought is frequent. However, there is variation in the environments they are found in, with some being drier and more intense than others. 

Cacti have become a popular plant species to grow and take care of at home, providing that care mimics their growth and survival in the wild. The following are five common mistakes in cactus care and how you can modify these mistakes to care for your cactus plants best. 

1. Caring for All Cacti the Same Way 

Cacti are not only unique from other plants, but they are incredibly unique among each other. There are upwards of 2,000 species found throughout North and South America, all in varying weather and living conditions. Because they are naturally found in different climates, soil conditions, and environments, certain species are best suited for some areas over others. 

Cacti all share a common survival strategy to preserve water, but the conditions in which they do it can be quite different. The first common mistake in cactus care is treating all cacti as if they are the same. While there are general cactus care guidelines we will point out throughout this article, not every recommendation will suit all species the same. 

To best care for your cactus plants and promote the growth of a healthy plant, you should be looking at specific care protocol for your individual plant types. This will ensure that you are mimicking the conditions that each species would be exposed to in their natural environment. Some species of cacti are easier to care for than others. 

For example, the Mammillaria genus of cacti likes to stay dry compared to others in the cacti family (Cactaceae). This means that they will need to be watered significantly less than other cacti for ideal growing conditions. Referring to individual species for best-growing conditions will ensure that the plant can thrive. 

There are certain species of cacti that are better suited for home growth than others. Here are some of the easiest ones to grow (listed by genus and offering many species within each): 

• Opuntia: Referred to as prickly pear, Opuntia needs bright light as young plants and full sun as adults. They withstand high temperatures and dry environments. Seedlings should be consistently moist, but adult plants are very drought tough. They can completely dry out between watering but need to be soaked. 
• Echinopsis: The Echinopsis genus is characterized by bulbous cacti. They like intense light, need thorough watering when their soil is dry, require good drainage, and do well with fertilizer.  
• Mammillaria: These need less sunlight than many other species, do not want lots of water and need fast-draining soil. 
• Rebutia: Different species of Rebutia will require varying sun conditions, and most do not want high temperatures. They need their soil to dry before re-watering. 
• Parodia: Keep Parodia away from excessive direct sunlight and shade them during the hottest parts of the day. Their soil should remain moist, so regular watering is required. 
• Ferocactus: These are often barrel-shaped cacti that appreciate direct sunlight, well-drained soil, and limited water. Only rainfall is required to water Ferocactus unless drought occurs. 

If you are considering cacti to grow at home, these are among the easiest to grow successfully.

A wide range of species falls under each genus, giving you plenty of cactus aesthetics to choose from. 

2. Overwatering and Underwatering 

One of the coolest features about cacti, which are considered succulents, is their ability to store water. Most cacti store water in their stems and thrive in environments will little access to water. When caring for cactus plants at home, there is typically always access to water, which can be good and bad. While we water most of our plants every day, cacti are not suited for it. 

Two common mistakes deal with how much water is being given to your cactus; you can overwater and underwater it. It is all about finding a happy medium as too much water will overwhelm the plant, and too little will cause it to dry out. It is recommended that cacti should be watered around once a week, but there may be differences depending upon the specific species. 

When watering most cacti, you will want to do so when the soil mixture is near or completely dry. The best watering technique is to soak the soil so that the cactus will be able to pull enough moisture from the mixture. Once the soil appears dry again, this is the signal to re-water (should occur every week or so). Too much water can cause the roots to rot when sitting. 

You may also notice physical signs on the cactus that show the impacts of watering at different levels: 

• Coloring: If the plants are not watered for considerable amounts of time, green plants will often appear more yellow. In extreme situations, parts of the cactus will turn brown or black, which indicates death.
• Plumpness: If the cactus looks very engorged or mushy looking, you may have overwatered it. Limit watering in this case, so the plant has a chance to return to ideal conditions. 
• Wrinkles: If the leaves or outer appearance look shriveled, this is a sign of underwatering. Make sure that containers are sufficiently watered when watering does occur. 

The time of year will also determine the watering schedule. The weekly recommendations are for the summer and growing months, while wintertime will require less watering because of dormancy. Only water when soil is completely dry in the winter to avoid drying the cactus out. Soil type will also impact watering habits. Fast-draining soil will require more water as it leaves the container. Larger containers will need more water than small ones.

Always look at the specific requirements of your species but err on the side of underwatering as opposed to overwatering. Cacti are naturally drought resistant and will be able to handle drier environments as opposed to being overwhelmed with moisture. 

3. Using Small Containers and Bad Soil Conditions 

The physical conditions in which cactus plants are kept will also have a significant impact on their ability to survive. There are two parts of this common mistake, which include using containers that are too small for growing and bad soil choices. These two factors work together to provide an unsuitable environment for many cactus species. 

If you are growing a cactus in a pot, you should examine both the size of the cactus and its roots. Many people will choose too small of a container for their cactus, which will limit the growth capabilities depending on the species. If there are longer roots, you will need a deeper container. It is recommended to choose a container that is slightly larger than the plant. 

For both plants in containers and those in the ground, the soil is critical. It is a common mistake to use regular potting or gardening soil for cactus, which does not contain proper draining qualities and can lead to root rot more quickly than cactus mix or soil. You should be mimicking growing the conditions that cacti find themselves in many desert environments. 

The best soils for cacti have the following characteristics: 

• Rocky: This allows water to easily pass through the soil so that it does not sit and negatively impact the roots. 
• Rich in nutrients: Many cactus mixes will include nitrogen, phosphorus, and potassium. 
• Contain peat: If kept in extremely dry environments, peat moss is often added to help the plants maintain and hold moisture, so the soil does not dry out too fast. This will vary based on the species you grow. 
• Fertilized: To help aid in the growth of your cacti, consider adding fertilizer to the soil every couple of months. They do best with light fertilizing as full-strength can be overwhelming to their composition and growth. Some soils are enriched with fertilizer and will not require additions. Phosphorus-rich solutions are best for growth. 

The containers you plant the cacti in should also have holes at the bottom to allow for this drainage to occur. Without holes, the soil remains moist, leading to premature death and decay of the roots. As cacti proliferate, they need to be repotted every two to three years so they have access to fresh soil with new nutrients. 

4. Offering Too Little Sunlight or Scorching Them 

Sunlight is crucial to the growth of all plants for photosynthesis. Cacti do engage in photosynthesis, but it is CAM photosynthesis, allowing them to maintain moisture by collecting carbon dioxide at night. The amount of light given to cacti is one of the most important factors in keeping the plant healthy. A common mistake is providing them with too little or too much light. 

There are two main issues where sunlight is concerned: 

• keeping them indoors where there is limited light 
• leaving them outside in intense sun that can burn the plant 

You want to provide a good light balance for the plant, which will largely depend on the species you are growing. Some cacti require indirect sunlight, bright light, or a restriction on the hours exposed. 

If your cactus is receiving too little light, here are some common solutions: 

• Keep it near a window: To avoid burning but allow for more light, keeping a cactus near a window will give it the light it needs without high intensity. 
• Use artificial lighting: If you cannot provide enough natural light, artificial light will work. You will just need to make sure it is exposed to these lights for longer as they are not as powerful or strong as natural lighting will be. 
• Move it outside: Many species will thrive in outdoor environments with ample sun. You can always put it in an area that will be partially shaded if it cannot withstand direct light all day. 

A common misconception is that cacti should be left in full sun all day since they are naturally in the desert. For some varieties, this is absolutely true and they need lots of light for growth. Others may be more intolerant, especially if it is a hot and intense sunlight. Brightness may be more important than direct sunlight, which can be achieved near a window for indoor plants. 

Most cacti will require 4 to 6 hours of sunlight per day, with specific species being suited for full sun. 

Some cacti are found in tropical environments rather than deserts, so intense sunlight is not going to allow them to thrive. Understanding your specific species will help determine this! Cacti can get a sunburn and they will tell you with yellowy skin color. If you notice this, take the cactus out of direct sunlight and grow it either indoors or in areas that will receive shade. 

5. Using Pesticides Incorrectly 

Because we want to keep bugs and insects off our plants for optimal growth, it is a common mistake to use harmful pesticides on your cacti. Most cacti naturally deter bugs and do not really deal with this problem as much as they do bacterial and fungal disease. When bugs do develop, you need to make sure proper insecticides are used as to not damage the plant. 

Bugs will feed on the nutrients accumulated in leaves and stems, with the most common pests being: 

• Mealybugs: These are dangerous to the plant and will attack it from the stems and the leaves. They are small white bugs that reproduce quickly and will damage the cactus. Try removing with water or tweezers before chemicals. Neem or horticultural oil and rubbing alcohol solutions can also be used before more intense insecticide applications. 
• Scale: Another difficult pest to remove, scale insects are often found in warm environments (perfect for cacti) and produce honeydew which can contribute to mold creation. If not addressed, leaves will die and it can kill the plant. Similar treatment methods can be used as mealybugs, but armored scales are more difficult to remove. Early intervention is necessary for effective removal. 

One of the most common ailments a plant faces when pesticides are involved is phototoxicity.

When pesticides are combined with sunlight, they can produce a chemical reaction that is similar to that of a sunburn on the cacti. This will result in burning of the cactus skin and is a direct result of a grower’s application of a pesticide. 

The best way to both use a pesticide and prevent phototoxicity is to apply pesticides when direct sunlight is not present. Application will kill bugs or pests but have limited impact on the surface of the plant as long as contact with sun is not made. When the pesticide is left on for the amount of time it needs to kill the bugs, wash it off before the plant will be exposed to sun again. 

Prevention is the best way to avoid cactus damage related to pesticides. Make sure all pesticides used will not damage the plant upon impact. Using a cactus-specific solution will help to keep your plants healthy and prevent the infestation of bugs or insects on your plants. 

Taking Best Care of Cacti 

Cacti are incredibly strong plants but they are also sensitive and should be treated with care. They are best served being slightly neglected over being micro-managed with too much water or interference. Our best advice for avoiding the mistakes mentioned throughout this article is to research the specific cacti you will be caring for. 

Because ‘cacti’ is a such a large plant grouping, there is not one set of directions that will apply. The common mistakes apply to all cacti, but which ones will be more resilient to either end of the spectrum is largely dependent on the plant you have. Cacti are excellent for homes, and compared to most plants, are beautiful and low-maintenance additions. 

Choosing the correct pot size and potting mix are only the first steps towards growing a cactus plant at home. Once you have everything ready, you will need to do the actual potting. Luckily, potting is a relatively straightforward process that shouldn’t give you problems.

So, how do you pot a cactus?  The process of potting a cactus plant starts with finding the right pot size and potting mix. Make sure the pot and soil have good drainage. Once you have the two, add sufficient drainage material at the bottom of your pot, fill it to about one-third with your potting material and start arranging your plants in the container. Hold the plant where you would like it to stay and fill out the spaces between the cactus and the pot with your potting material.  Firm the soil and you are good to go.

Read on to find out everything you need to know about potting/repotting your cactus plant, including how to choose the right pot size, how to knock out the plant, and how to handle spiny plants.

The Potting Mix/Medium (Soil)

You will need porous soil with excellent drainage. Cacti plants prefer porous soil that doesn’t hold water/moisture for a long time. The potting mix should also be spread over a deep layer of pebbles, gravel, or broken bricks to improve porosity.

Most cacti species appreciate more organic matter in the soil since it provides sufficient nutrients for your plant. Potting soil can either be “heavy,” “light” or “organic.”

Heavy potting mix is mainly made of clay, loam, or garden soil with about one-third humus. If you prefer using heavy soil, make sure it contains about one-third perlite or sand to improve drainage.

Light soil means it is mainly made of open-textured organic material with good drainage. The soil can stay moist for relatively long periods but not wet. This type of potting mix is good for jungle cactus.

Organic soil is rich in leaf mold or any other organic matter. Mixing this type of soil with perlite or coarse builder’s sand will help improve its drainage.

The Pot Size

The overall pot size will largely depend on the size of your plant and the nature of its roots. Generally, we recommend using a pot that is about 0.5 inches bigger than the plant. The container doesn’t need to be tall/deep because most cacti plants develop a shallow root system that doesn’t grow deep. Therefore, you will want to make sure the pot is wider and not deeper.

However, a few cacti species grow a taproot that provides the plants with strong anchorage and also absorbs moisture from deep below the surface. If you have this type of plant, make sure you go for a relatively deep/ tall pot.

For relatively younger cacti plants, feel free to start by keeping them in a garden dish. The clay trays used for bonsai are always a good start. Once the plant starts to grow bigger, consider transplanting it into a pot.

Make sure you aren’t over-potting because it can lead to root rot. If the cactus is top-heavy, make sure you put the smaller pot inside a large pot and fill the space between the two with gravel to improve drainage. This arrangement will provide your cactus with a base that is heavy enough without running the risk of root rot.

Potting a Cactus Plant

Now that you have the right pot size and good potting mix, it is time to do the actual potting. Follow these steps to pot your plant:

1. Add gravel to your potting mix

Carefully spread a layer of gravel or small pebbles in the bottom of your pot. Top it up with some potting mix designed for your cactus. Make sure the mixture rises to about one-third of your container.

The primary reason why we are adding pebbles/gravel to the potting mix is to improve drainage and soil porosity. Keep in mind that ordinary potting mixes tend to hold too much water for long periods, which is not good for your plant.

2. Remove the cactus from the nursery pot

In most cases, you will purchase the plant when it is already potted in some kind of container.  Therefore, you will need to know how to remove it from that container. This might be the trickiest part since it requires great care.

Slip on a pair of heavy gloves to protect your hands and use a pair of tongs to ease out the cactus from the pot carefully.  If the plant clings to the nursery pot, be sure to give it a few light raps against a wall or any other hard surface or simply slide a blunt knife/fork around the inner rim.

If that doesn’t work, you may be forced to break the container altogether. Make sure you put on a protective eye gear before you smash the container.

3. Test the plant size

Once you have filled the container with gravel and potting mix to about one-third full, test the plant size to see if you are good to go. Make sure the plant isn’t too far down in the container nor too high above the top of the pot. Also, center the plant unless it is the type that likes to travel in a horizontal direction, which should be potted on the edge of the container.

4. Position the plant where you want to be in the pot

Hold the plant gently where you would like it to stay and fill all the spaces between the cactus and the container with a potting mix.

5. Firm the soil

Once your plant is in a good position, use a spoon, small trowel, or any other tool to add more potting mix while gently firming it down. Press the soil gently down, especially around the roots, and if you feel like there isn’t enough soil around the plant, feel free to add more.

However, be sure to leave sufficient space between the soil surface and the top of your container so you will have room for water.

6. First watering

Lightly water your cactus for a few minutes. From there, wait for a few days until the soil dries out completely before you water again. Remember the fact that if you overwater the plant, it may start to rot and eventually die.

Repotting a Cactus Plant

Repotting is an inevitable exercise in the life of a cactus plant. Since your plant is always growing, it will eventually outgrow its first pot, and you will be forced to repot it in a bigger container. Typically, your cactus will require potting every 2-4 years. Here are a few things you need to know about repotting:

When do you need to repot a Cactus?

You will know it is time to repot your cactus when you start seeing roots come out of the bottom of the container. This is a sign of overgrown roots.

Although these succulents tend to enjoy small spaces and can stay in one container for several years, the sight of roots will let you know when the cactus has expanded too much and requires repotting.

As mentioned above, it will generally take you between two to four years to see signs of repotting. If you fertilize your cactus annually, repotting after every four years is appropriate, but if you do not fertilize regularly, consider repotting after every two years to help in replenishing soil fertility.

The best time to report your plant is between January and February when most plants are in active growth.

How to repot your cactus

To repot your cactus, you will need tea towels/sheets of newspaper, a blunt knife, slightly larger pot, free-draining potting mix, watering can, horticultural grit, and a fork. Follow these steps to repot your plant:

1. Loosen up the potting mix by carefully running a blunt knife or any other suitable tool in it. Make sure you are thorough with this process to avoid damaging the plant.
2. Carefully remove your cactus from the old pot. Be cautious to avoid coming into contact with the spines. Hard gloves or combined sheets of newspaper will help you avoid contact with the pricks. A pair of tongs can also work fine.
3. Remove soil from the roots and make sure you have individual roots separated from each other
4. Thoroughly check the roots for any signs of diseases or pests and treat with appropriate chemicals if need be
5. Prune large roots
6. Allow the cactus to dry out for up to four days to allow roots that might have been hurt enough time to heal to eliminate the risk of root rot.
7. Follow the potting procedure described above to plant the cactus in the new pot. However, don’t water your plant immediately.  Give it up to a week after repotting before you water it. 

Final Thought

Potting and repotting are crucial parts of growing cactus at home since they ensure you maintain the ideal pot size at all times. As long as you follow the steps outlined in this guide, you can pot/repot your plant without a problem.

Thanks for reading our potting guide, and we hope you learned something new. Let us know if you have any tips or advice you feel like we didn’t share. Don’t forget to subscribe to our email list for awesome cactus gardening tips.

Choosing the right pot size for your cactus plant can be quite complicated, especially if you are still a new gardener. A container that is too small or too big can have a significant impact on the overall health of your plant. Luckily, once you figure out how pot size affects the growth of your cactus plant, it becomes relatively easier to establish the appropriate size for your plant.

So, how big of a pot does a cactus need? Generally, you should leave about a half-inch of space between the main body of your cactus and the pot’s rim. This will provide the plant with sufficient room to grow and spread. Too much space between the plant and the pot rim can prevent it from growing larger because the roots need to spread out first before the cactus starts to expand. For instance, if you acquire a three-inch cactus plant, a 3.5-inch pot will be good enough.

In this post, we discuss everything you need to know about container size for a cactus. Read on to discover more.

Cactus Root System: A Quick Overview

Before we dive deep into discussing the right pot size for your cactus plant, it is essential to understand the nature of this plant’s root system because it will have a significant impact on the container size.

Generally, cacti have a shallow root system that tends to spread out widely but less deep. They have fibrous roots that specialize in absorbing moisture from the ground surface more easily. These roots only penetrate a short distance into the soil.

For instance, a young Saguaro plant that is about 12cm high may have a root system spanning two meters in diameter and only 10cm deep. The extensive root system is one of the main factors behind the successful survival of cacti plants in deserts where there isn’t plenty of water. 

However, some species usually have a long taproot that grows deep into the ground to anchor the plant and draw out as much moisture as possible.  The taproot is supported by smaller fibrous roots that stay close to the ground surface to absorb water and moisture quickly.

If you purchase a cactus plant with a taproot, you may want a relatively deep container to allow the taproot enough space to grow. Carefully study the root structure of your preferred plant and keep it in mind when choosing the container shape and size.

Why Is Pot Size Important?

Pot size is a critical factor to consider when growing cacti because it plays a crucial role in determining how healthy your plants will be. A container that is too small can be a detriment to your plant’s health.

If the roots of your plant become constricted due to small pot size, the plant won’t grow as fast as it should. It will also limit the overall size of your cactus at full maturity. Furthermore, small pots hold less soil which means fewer nutrients are available for the roots of the cactus to absorb.  You will experience the same issues if you grow too many plants in one pot.

While you may not be having a pot that is too small, you should also avoid containers that are too big for your plant.  It may seem like an incredible idea to provide your plant with plenty of growing space, but that could also cause a wide range of health issues. A container that is too big can even cause your plant to die.

Keep in mind that if the container is too big, it will hold a lot of water for longer periods. Over time, the roots of your plant will start developing root rot due to overexposure to excess moisture.

Root rot is a serious problem that can easily result in the death of your plant. If you realize your pot is too big, make sure you monitor the amount of water and frequency of watering to avoid problems.

Apart from the overall size of the pot, its depth also matters. Avoid containers that are too deep or too tall because of the amount of potting mix they contain. Just like containers that are too large in diameter, those that are too deep/tall tend to retain a lot of moisture for longer periods which can result in root rot.

Although you may be looking for a container with sufficient room for the taproot, you need to keep in mind that too much room may cause other problems. Generally, these succulents prefer shallow containers that dry out faster. This way, you will have healthy and happy plants.

Determining the Right Pot Size

Many seasoned gardeners recommend using a container that is about 10% larger in diameter than the cactus plant at its widest point. For instance, if your cactus plant is approximately four inches across its widest point, consider a container that is about 4.5 -5 inches in diameter.

These measurements include both the above and below ground portions of your plant.

A good-sized pot will provide your cactus with sufficient room to grow without having too much soil or crowding the roots.

Potting multiple plants in one container

At this point, you may be wondering if it is right to have more than one plant in a single pot. Well, it is fine to plant more than one cactus in one container, but you need to be careful with the process. Make sure the plants have similar growing requirements, i.e. their water and light requirements match.

For instance, a jungle cactus may not be compatible with a desert cactus, but you can have an Echinocereus sp. in the same pot as the Mammillaria sp (desert cactus). You should also consider the growing rate of each plant before mixing them.

Slow growing plants can be potted together the same as fast-growing plants. If you end up with a mix of slow-growing and fast-growing cacti in the same pot, things won’t be good. In most cases, the fast-growing cactus will upset the balance of your composition and force you to get rid of it because it would overcrowd the slow-growing species.

When choosing your pot, make sure you consider how many plants you plan on potting in the same container. In this case, it is upon you to use your best judgment and instinct to estimate how much room each plant will require to avoid overcrowding.

Also, keep in mind that most cacti plants need a considerable amount of light to thrive. Therefore, be sure to allow sufficient room for each plant to receive enough light without blocking others.

Up-potting

Potting is a continuous process, and the proper pot size for your cactus will always change as the plant grows.

As it gets bigger, you will need to transplant it into a larger pot. Gardening experts recommend using a pot that is approximately one or two inches larger in diameter than the previous container.

This will allow your cactus to grow without risking its health with too much moisture or soil. 

Be careful with cuttings

When planting cacti cuttings, make sure you are using an incredibly shallow pot. Cuttings can easily be damaged if they are given too much moisture or when planted too deeply.

The relatively smaller containers that you may not use with your bigger plants will always work best when potting cuttings.

Critical Features of a Good Cactus Pot

No matter the size or shape of your container, it is crucial to ensure that it has proper drainage. A container that doesn’t allow water to drain out quickly is quite dangerous because it will expose the roots to excess moisture leading to root rot. You must also make sure you are using the right type of potting mix intended specifically for cacti plants.

It is also critical to consider the material the container is made of and how it will affect your plant. Ceramic and terracotta containers are quite popular, but they tend to heat up quickly when exposed to sunlight. This can dry out the soil pretty fast before the plant absorbs sufficient moisture.

Wooden containers usually stay cool for longer periods when exposed to sunlight but retain too much moisture in shades.  Some pots are also made of a metallic material, but they are not a good choice for long-term use because they are susceptible to rust.

Always consider where you will be keeping your plant before you decide on the type of container to purchase. The storage area will help you determine what material will be best for that location when shopping for your plant pot.

Final Thoughts

Pot size is a crucial factor to consider when growing cacti plants. Generally, the right pot will almost be the same size as the plant and more specifically, its roots.

When choosing your pot, it is always good to take a look at your plant roots to determine whether you will need a deep or shallow container. If your plant grows long roots, you will want a relatively deep container.

We believe you are now well equipped to purchase a new pot for your cactus. While there are lots of other things you need to consider when choosing a pot, it is still a fun part of growing cacti plants.

Let us know what you think in the comments section and subscribe to our email list for the latest cactus growing tips.

Is your cactus plant changing color? Does it look unhealthy or unhappy? If so, then you should be worried because you might be staring at a dying plant. The truth is that cacti plants are hardy and will thrive with minimal care. However, just like any other living thing, they have weaknesses, and if you are not careful or don’t take action swiftly, the plant can develop diseases, which will eventually lead to death.

So, how do I know if my cactus is dying? Well, one of the easiest ways to know if you are staring at a dying cactus is checking the plant’s overall condition. Typically, a dying cactus feels shakier in its potting mix and may appear as though it wants to fall off. This is a clear sign of root rot and other underlying problems. Some plants may also change color, develop soft segments on the stem, or start producing a foul smell.

Read on to find out some of the telltale signs of a dying cactus and some of the common reasons why cactus plants die. We are here to help you grow healthy and happy plants.

Early Signs that Shouldn’t Worry You Much

Before we jump into serious signs of impending death, it is good to know some of the early signs so you can deal with the issue as early as possible.  In this section, we look at some of the signs that should make you concerned but are not actually symptoms of potential death.

Some plants change color

It is good to note that some cacti plants change color when they are stressed and unhappy. However, you need to observe the color change keenly because it may be a sign of good health.

For instance, if you expose your plant to lots of sunlight, it may turn to reddish, which shouldn’t be a major cause of concern.  Unfortunately, if your plant is turning to yellow or brown, then you should be worried.

Corking

Another common phenomenon that gardeners mistake for a disease is corking. In most cases, corking happens naturally as the plant ages. During this stage, your plant will develop a hard, brown skin where its green outer layer used to be.

The browning usually starts from the base of the plant and gradually develops up the stem. The parts affected by corking harden and turn to light brown or brown grayish. In such a case, your cactus is only aging and not dying.

Withering

Another common sign that people mistake for death is withering. If you discover that your plant has shed some pads and some parts are drying off, then it is a sign of dehydration. In such a case, the only thing you need to do is water it.

Most cacti species react to prolonged spells of drought by preserving the younger parts and letting the older ones dry and fall off. No need to worry because this is not lethal, and your plant will soon recover as long as you water it moderately and regularly. 

Also, don’t be afraid to cut off the dried parts if you need some beauty.

Signs That Your Cactus Plant Is Possibly Dying

Some signs point to serious problems that can lead to the death of your plant. The moment you notice any of these signs, be sure to act swiftly just in case you still have some time to save your cactus.

Discoloring

In most cases, cacti plants will start to lose their natural color as a sign of stress and strain. Depending on where the actual problem is coming from, the discoloring can begin at the top end of stem segments or from the base of the plant. 

Severe discoloration is quite dangerous, and death is guaranteed if you do not take rapid action.

Your plant become wobbly

You should be worried if your cactus has become wobbly because this is a clear sign of root rot. Keep in mind that succulents are slow-growing plants, which means that symptoms of underlying problems develop quite slowly.

By the time you notice the signs, it could mean the roots have already rotten beyond repair.

If the base of your plant has become yellow or brown, then it could mean the cactus is already in a severe state.

Root rot is, by far, one of the most common causes of cactus death. Root rot is often accompanied by a loss of firmness and turgidity of the leaves and stem of the plant.

To try and save your plant, take it off the ground, identify all the rotten roots, and cut them off. Rotten roots will appear brown or even blackish depending on the level of rot, while healthy roots will be light in color.

Presence of soft segments around the plant

In most cases, discoloring will be accompanied by stem portions that appear soft and swollen. These parts can easily break off with minimal force. 

The easiest way to establish the presence of soft segments around your plant is by trying to pull a spine off. If it falls off easily without much struggle, you should be worried.

That alone is a sign of a dying cactus.

Fungal infection

Fungal infection is also another sign of a dying cactus plant. You can easily recognize fungal infection because it causes lacerations in the tissues of your cactus plant. The lacerations may start at the areolae or any other part of the outer tissue.

Fungal infections take different shapes and colors, but the most common are only two.

The presence of brown dents on the plant’s outer tissue rounded in most parts like half-moons is a sign of fungal infection. The appearance of white-gray spots is also another sign of fungal infection.

Fungal infection on the aerial part of the plant may not be as damaging as root rot, but they are still dangerous.

The best way to avoid further damage as a result of such infections is by spraying your plant with a natural fungicide. Most people prefer using tea tree oil diluted in water to treat such infections.

Alternatively, you can sponge the affected areas with alcohol for as long as it takes.  However, if the infection was too severe and had already damaged part of your plant, consider chopping off the affected area and sterilize the wound.

Foul smell coming from your plant

If your cactus plant is emitting a foul smell, you should be worried because it is a bad sign. Foul smell means that a significant part of the plant is completely rotten, and there is probably nothing you can do to save it.

In other words, your plant is no longer in the dying process, but it is dead. All you can do in such a case is to dispose of the plant and obtain a new one if you still need to have a cactus plant around.

Reasons Why Your Cactus Is Dying

Now, you can tell if your cactus is dying, but your biggest worry should be; why is it dying?  It becomes easier to deal with the problem if you know the cause. Here are some of the common causes of cactus death.

Overwatering

Overwatering is by far the surest way of killing a cactus plant. While it may seem a sensible thing to do, frequent watering only causes more damage than good.

Typically, cacti plants need less love, attention, and water. Some of the common signs of overwatering include browning, root rot, and unusually plump spines. 

To avoid this problem, try not to be overzealous in your watering and follow these simple watering tips all the time.

Improper planting depth

Planting cacti too deeply inside a container can also cause death. Try to position your plant at almost the same potting mix depth it was grown at while at the nursery or previous container.

Resist the temptation of burying a significant portion of the stem into the soil. While planting or repotting your cactus, make sure all the green stem tissue remains above the soil.

When your newly planted cactus shows signs of bending, consider using a wooden to provide support instead of additional soil.

Improper soil drainage

Cacti plants need a special type of soil to thrive. Typically, these plants do well in soils that drain water quickly. If the soil holds water for too long, root rot becomes inevitable.

Luckily, it is not hard to get the right type of soil for your plant. You can make your own potting mix or go for the commercial soil mixtures, which also work fine.

Wrong pot size

Getting the wrong size of a container for your plants is another sure way of kicking off the dying process. The pot could be too small or too large.

A pot that is too small for your plant will most likely choke its roots since there is little breathing space. A larger pot, on the other hand, may retain too much water leading to root rot.

Lack of light/sun

Have you noticed unusual stretching of your cactus plants towards a light source? This might be a sign of inadequate exposure to light. The stretching is referred to as etiolation and is common among indoor plants.

Most cacti species are native to deserts and require access to intense sunlight to thrive. Therefore, if you are living in a region that receives less sunlight, you should consider supplementing the deficit with artificial lights.

Fortunately, there are lots of good grow lamps on the market designed to deliver the exact amount of lights needed by indoor cacti plants.

The Bottom Line

While it is relatively easy to grow cacti plants, you need to keep in mind that they are susceptible to death if the conditions are not right. Since they are slow-growing plants, it may take several weeks or even months before you start to notice signs of death in the plant.

To save your plant, always act swiftly whenever you notice any of the symptoms discussed above. We hope you now know about dying cacti plants and what you can do to save them.

It is now time to check around your plant and do the necessary.