Caring For Cactus In Winter

Cacti are low-maintenance plants but need monitoring for proper growth. They will either bloom in winter or be dormant depending on the species.

Most cactus are usually dormant during winter and active during summer. However, some are active during winter. Christmas cactus and Thanksgiving cactus bloom in winter. We know how unfriendly winter can be, and your cactus needs to be taken care of with caution. I sought to find answers on how you can care for your cactus in winter, and I made some pretty exciting discoveries.

Bringing Your Cactus Indoors in Winter

If your cactus has been outdoors during spring and summer, you need to bring it indoors in cooler weathers. This way, your plant will gradually transition without having a ‘shock.’ 

  1. Move your cactus to a shade outdoors, which receives about one or two fewer hours of direct sunlight daily for 1-2 weeks. Do this just before winter when the temperatures are expected to be below 65F at night. 
  2. Move the plant again to a place that receives one of two fewer hours of sunlight as compared to the previous place. 
  3. The idea of moving the cactus gradually is so that it gets used to the temperatures for it to avoid the ‘shock.’ Take the cactus indoors and find a sunny spot. A south-facing window would be perfect. Try keeping the cactus warmer in temperatures of 65-90F. All this is in preparation of winter dormancy.
  4. Make sure you don’t fertilize the plant during winter because it is dormant. 
Cactus in a pot near the window.
You need to bring it indoors in cooler weathers.

To encourage your cactus to go dormant, you need to reduce your feeding schedule to make it less. Don’t water frequently but rather do it possibly once a month. 

Caring for your Cactus Indoors in Winter

1. Place your cactus strategically 

As mentioned, it is advisable to bring your cactus indoors to avoid the harsh winter conditions. Some people opt for different types of grow lights to provide ample light for the plant. However, unless your home is extremely dark, it may not be necessary to purchase these lights. 

Place your plants strategically at a place where they will receive the most light as possible. The light should be sufficient enough to keep your cactus colorful for the few cold months. If you have more than one cactus plant, keep rotating them so that they all get enough light. 

If you are in the northern areas that experience some harsh winters, don’t place your cacti too close to the window. The cold coming in maybe too harsh to them and they may end up not doing very well.  

2. Grouping your plants

If you are a massive cactus lover, you may probably have a collection of different species. As mentioned earlier, some species are active during winter. The idea is, initially, if you started growing the cacti from seed, you should have probably labelled them. Even when you propagate using cuttings, labelling is essential as this helps you know the particular needs for the plant. 

Know each of the plant’s water and light requirements. Cactus are quite sensitive to overwatering, and you need to water just the right amount. You don’t want your roots rotting slowly and the cactus eventually dying. 

Group them in sections of those active and dormant during winter and their different light requirements. That helps reduce the possibility of making mistakes during their feeding time. If you are not quite sure about the schedules, there’s a lot of research online that has been done on different species. This would be resourceful. 

Different kind of cactus on one place.
If your cactus has been outdoors during spring and summer, you need to bring it indoors in cooler weathers

3. No feeding and less watering

As cacti are more prone to rotting as compared to other succulents, proper care needs to be taken to avoid such incidences. Some common signs of root rot are black or colored dots on cacti skin, discolored scabs, sunken spots, and you may even see some oozing of the cactus. 

You need to take into consideration what happens below the soil which you can’t easily see. Cacti depend on the root hairs to provide nutrients. If they start rotting, that means nutrients are not readily available, which drives the cactus to the above signs of root rot. These plants can take some underwatering for some time, but overwatering is pretty bad for them.

Topview of a golden barrel cactus.
Keep the water levels low and only water when they really need it.

Keep in mind that you should keep the roots happy when watering. This means just enough water to prevent them from drying. Since most species won’t flower in winter, that means the growth rate will be pretty low. Therefore, they just need enough water for survival. 

Also, avoid feeding them. Don’t use any fertilizer at this point as they may end up becoming weak. Keep the water levels low and only water when they really need it. You can use a wooden stick to poke the soil until the lowest point before watering to see if the soil is still wet. Only water when the stick has no soil remains to stick on it. 

The issue of watering is quite sensitive. If you adhere to the above, you might find that your plant only needs water once a month or even longer. Be careful not to underwater such that the soil starts to pull away from the sides of the container. The roots may end up desiccating and collapsing.

Leaves and Soul Succulent Fertilizer Pellets |13-11-11 Slow Release Pellets for All Cactus and Succulents | Multi-Purpose Blend & Gardening Supplies, No Fillers | 5.2 oz Resealable Packaging
  • 🌱 PERFECT BLEND OF NUTRIENTS - Give your succulent plants and cactus everything they need to grow up healthy! Our 13-11-11 slow release fertilizer pellets have all of the essential nutrients that...
  • 🌱 6 MONTH TIMED RELEASE - A single application of our succulent plant fertilizer lasts up to 180 days, thanks to its controlled release. This significantly minimizes waste and the need for upkeep.
  • 🌱 SUITABLE FOR ALL VARIETIES - You can use our succulent tree fertilizer pellets on just about any kind of succulent, cactus or epiphyte plant, from orchid to bromeliad. It's also great for...
  • 🌱 DURABLE PACKAGING - These fertilizer pellets come in a very sturdy, 5.2 oz resealable bag. Store it in a safe, dry place and you can count on it to stay in great condition for a long time to...
  • 🌱 ALWAYS 100% GUARANTEED - Our tree nutrients are made and packaged in the USA to ensure quality. Every purchase is also covered by our 100% Money Back Guarantee for your peace of mind.

The pot you use is a huge determinant of the plant rots. Get a suitable container, preferably terracotta pots that have drainage holes. The importance of these holes is to ensure that any excess water is drained away to avoid water sitting in the soil for long. 

You probably are aware that even the soil you use is a major determining factor how your plant thrives. There are readily available cactus soil mixtures which you can purchase in local garden stores. You can also order online, and they can be delivered to you. Make sure the mix you go with has some coarse sand and vermiculite. The soil mixture and the pot work hand in hand to ensure your cactus doesn’t die of root rot.  

4. Choose your cactus wisely

Purchasing cactus should not be complicated. However, make sure you choose the best species, one that works for your environment. Some cacti species are more tolerant to the freezing temperatures of winter compared to others. 

A Mammillaria Bocasana Cactus flowering.
Make sure you choose the best species, one that works for your environment.

Consider choosing a cactus that will survive through winter. At times, you may need to cover your plants to retain air and moisture to prevent ice from destroying the stems and trunks. 

Some types of cold-hardy cactus

  • The Claret cup cactus

This particular species is from the Echinocereus group. They can withstand temperatures of -20 degrees Fahrenheit/28 degrees celsius. If they are indoors, they can even withstand lower than that. 

  • Mammillaria Bocasana 

This type of cactus belongs to the Mammillaria group that are usually ball-like. Once they mature, they can form rolling mounds of tiny bits of cactus. They can withstand temperatures as low as -20F. 

  • Opuntia

Opuntia is also another group of cacti that’s cold-hardy. Prickly Pear is the most common type in this family. Not only is it among the fast-growing cacti, but it is also drought-tolerant, which means it doesn’t need frequent watering. They grow to an approximate height of 12 inches. 

  • Pediocactus 

One of the popular types of this family is the Mountain spiny star. They are ball-like, and they have a high resistance to cold. They also have the potential of growing up to 12 inches high.

  • Escobaria

Lee’s dwarf snowball, plain’s pincushion, and beehive cactus are some of the popular types in this category. They are very tiny but produce big flowers. 

5. Insect management

Homes will tend to be dry during winter. This is because there are all kinds of heating systems to keep the house warm from the heaters to the furnaces. Insects such as mealybugs love warm places and are most likely to attack your cactus

A mealybug.
Insects such as mealybugs love warm places and are most likely to attack your cactus

It is natural for you cactus to be insect-infested. What you do to manage them is what matters.


They are usually ⅓ or ⅕ inch long and resemble cotton as they appear waxy. Mealybugs are usually in a cluster and move slowly. They are mostly found on cactus leaves and other hidden parts of the plant. 

We also have root mealybugs that suck the root juices and live in the soil. When they suck these juices, root rot is almost nearly inevitable, and they end up causing bacterial infections.

Fungus gnats

They are usually ⅛ or 1/16 inch and look like black flies that can easily be confused with mosquitoes. Mostly, they hover around the soil surface. What’s interesting is that the adult flies can’t harm the cactus, but the larva is pretty dangerous. The larva lives in the soil and consumes both the roots and organic matter, which are meant to provide nutrients to the plant. 

Fungus gnats are more likely to affect cactus seedlings as compared to fully grown cacti, and they may end up killing the young seedlings. 

Spider mites

The first sign that spider mites infest a cactus is the webbing. You will also notice brown spots on younger plants on the epidermis. In terms of size, they are about 1/50 inch. If you try tapping the affected area, they look like dust. They suck the plant’s juices.


Scale insects, just like mealybugs, are cotton-like and they attache themselves to leaves and stems but can be scraped off.

Try and control these insects so that they don’t destroy your cactus. Get a safe remedy. First, to avoid the attacks, you need to grow your cactus in the right conditions. Make sure if it’s winter you ensure they are getting just the right amount of heat and light. 

For spider mites and mealybugs, you can wash them off. Cover the soil you’ve planted your cactus in to avoid it being washed away and pour a lumpsum amount of water on the plant. The insects should be washed away. 

Consider spraying the plant with a dilute alcohol solution of 1:3 with the ratio being alcohol to water. 

Prevention is better than managing the insects when they have already attacked your cactus. Hygiene should be a priority when growing these plants. Always be on the lookout for dead leaves and discard them as they are a hot breeding ground for pests. Keep your plant in the recommended conditions such as the right sunlight and watering them only when they require the water.  

Caring for Christmas Cactus in Winter

Like previously mentioned, unlike most cacti species that are dormant in winter, the Christmas cactus is active at this particular season. 

The Christmas cactus prefers bright but indirect sunlight. If you decide to grow them indoors, protect them from the southern and western sun exposure. They do well in warm temperatures of 70-80F. 

During winter, try to keep your Christmas cactus in the evening at temperatures of 60-65 °C. It is more likely to form buds in temperatures between 50-55 °C. 

Christmas cactus flower.
Christmas cacti love humid environments.

A word of caution is to avoid putting them in cold drafts and also keep them away from home heaters or fireplaces. Remember to fertilize them in spring when growth appears. 

Christmas cacti love humid environments. For people who live in arid areas, it’s essential to keep your plant moist. The easiest and best way to do this is just placing a tray of water near the plant. The water will evaporate into the atmosphere and provide the needed humidity. 

Another alternative of providing humidity is getting gravel and putting it in a dish then filling it with water. Then place your potted cactus in it. You can also mist your plant with a spray bottle. 

The cold-hardy Christmas cactus

The Christmas cacti tend to bloom around Christmas hence the name. They flower during winter to produce white, red, pink or lilac flowers which are usually 3 inches long. The cold hardiness of this species is higher than for other cacti. They can’t withstand frost, but they need cold temperatures to force bloom. 

freezing Leaves.
These cacti hate frost and snow, so avoid exposing them to these. A slight exposure damages the pads

How to treat a Christmas cactus exposed to cold

As much as these species bloom in winter, they also don’t love freezing temperatures. If they stay out too long, the water that’s usually stored in the tissues will freeze making them expand. This damages the stems.

Once the water thaws, the tissues will contract, but they will be left damaged. This, in turn, leads to rotting spots and dropped leaves. 

When you notice your cactus looks like this, you need to treat it and try to revive it. The first step is removing any tissues that seem rotten. Water the plant lightly and place it at temperatures of 60F or 15 °C. Monitor the plant and if it survives at least six months, you can then fertilize it using a cactus-specific fertilizer. It only requires diluted solutions. 

Christmas cactus near the window.
Christmas Cacti bloom in winter, they also don’t love freezing temperatures.

The idea is, if you grow your Christmas cactus outdoors, you need to take it indoors when the temperatures are extreme to avoid doing damage control. 

To encourage the blooming and healthy growth of your plant, make sure you consider repotting. You can re-pot any time between 1 and 3 years. Sometimes, you’ll notice that your cacti roots are poking their way out of the drainage holes. This is a clear indication you need to re-pot. 

All in all, proper care should be taken to all cacti species because they are more likely to have damages in these extreme weather conditions. The above tips should help your cactus stay safe. 

Related Questions

How can I cold protect my cactus? Cactus need to be protected from the freezing winter temperatures. If your cactus is in container plants, you can quickly bring them inside your house to protect it from the freezing temperatures outside. Alternatively, for the landscaping plants, you cover them with frost blankets or bedsheets during late afternoons. Make sure the covers don’t touch the plants. You can look for support frameworks. You can remove the coverings the next day when the temperatures rise above freezing point. 

HECTOLIFE 50-Pack 1 Gallon Flexible Plant Nursery Pots,Thickened Soft Plastic Seedling Pots,Seed Starting Pot Flower Plant Container for Succulents, Seedlings, Cuttings, Transplanting
  • SIZE -- 50 pcs plants nursery pots,Nursery Pot dimensions: Height 6.9”, opening diameter 6.7”, bottom diameter 5.1”.
  • Material-- soft thin plastic. Which is lightweight, reusable and restored after being compressed with no broken.
  • Special Design--12 small drain holes in these pot bottom can help soil drained and ventilated; and the top raised rim make they are easy to handle and to stack.
  • Plastic Pots for Plants--The nursery pots are used for cuttings & seedlings, planting seed starting, which is great for doing a lot of succulent propagation, great as plant transition pots.
  • Beautiful and Practicable--The plastic nursery pot is integrated with simple design, brick red exterior and dark interior, It's beautiful and practical.

Can cactus survive with artificial light indoors? When you decide to grow your cactus indoors, you need to consider the light aspect. Light may be insufficient, and they may not thrive. Artificial lights act as a substitute for sunlight. They grow well with no issues. Make sure you attach your grow lights to a timer so that it’s easier to control the light the cactus receives.  

Why does a cactus turn yellow? There are a few reasons why cactus turn yellow. One, they can be sunburned. If they have been living indoors and are taken under direct sunlight, they will certainly become yellow. Introduce them to direct sunlight gradually to avoid this. The other reason is that they may be infested by pests such as mites. These little animals such the cacti tissues. Lastly, it could be because of root rot. Rotting is one of the significant effects of overwatering your cactus. Avoid overwatering; you’d preferably underwater than overwater. 

Last update on 2022-09-08 / Affiliate links / Images from Amazon Product Advertising API

read this next

Succulent plants are well known for their drought tolerance and water conservation. The roots of a succulent plant store water, giving it an advantage in periods of drought, low rainfall or slow growth. Understanding how you should care for them determines when and how often you have to water.
Jade plants are forgiving of many conditions, including low light. They can grow in semishade or full sun. What the Jade plant cannot tolerate is the cold. If you live in an area where the temperature reaches a nightly low of 40 degrees Fahrenheit, you will need to bring your plant inside during the winter months.”
Desert plants are having to adapt to the harsh conditions, so it is no surprise that some of them produce very unique characteristics to help them survive where others cannot. They have developed ingenious methods of catching and storing food and water. The cacti is one, but there are many other
Cacti are among the most popular house plants due to their undemanding nature and lack of light preferences. These topped our list of best small cactus species for your indoors, which you can keep as a table or desk plant.
The aloe vera plant is a true desert giant. It thrives in warm, dry regions of the world including South Africa, South America, and the American southwest. The aloe Vera plant has long been recognized as an all-natural herbal remedy for burns, digestive problems, bee stings, acne, spider bites and inflammation. But what happens when an aloe Vera plant is rotting?
Euphorbia, commonly known as the spurge, is a genus of flowering plants that includes around 2000 unique species. Although euphorbia and cactus look pretty similar, there are some major distinctions and here is how you can differentiate them.
Different cactus species require to be watered in different ways. Specifically, forest or jungle cacti need watering more frequently than desert cacti. Providing more water than your cacti really need will damage the plant and cause root rotting
String of Pearls is a beautiful addition to any garden with its unusual and very attractive flowers. This succulent can be made into an indoor plant as well. Propagation is easy, as are its pruning and care requirements.
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
Air plants make excellent houseplants. Consider air plants as another option when adding greenery to your home. They are a creative and imaginative way to give any room a fresh feeling, from the bathroom to the living room or breakfast nook . If you’re thinking about having an elegant yet easy-to-care indoor garden, these little plants are the perfect foundation – and they make a great gift idea as well!
Tropical plants are the desire of most people. Such inspirational plants can decorate your house or garden. In order to make them look more attractive, you need to pick the best place for planting. In this article, you will find some useful tips for having a perfect cactus garden.
Cactus plants are some of the most unusual plants under the Sun. They have a wide range of uses and applications all over the world. Take a look at some of the animals that depend on cactus plants for their survival.
It is possible to save a rotting cactus as long as the damage isn’t severe, Be sure to take action as soon as you notice any signs of rot on your cactus plant. Keep in mind that this is a serious problem that can easily lead to the death of your Cacti
Is Succulent Soil the Same as Cactus Soil The answer to this question may not be as straightforward depending on the type of succulent you are growing. For instance, cactus soil is a completely different thing from desert or cacti soils which have more components and nutrients mixed into them to help nourish plants. However, cacti and succulents share a number of commonalities and this includes soil.

Receive the latest news

Get Our Cacti Newsletter

Stay updated with the latest facts, tips, advice, and more!

Your privacy is important to us.