Ultimate Guide: How to Get Your String of Hearts to Flower

Your String Of Hearts plant looks healthy and happy, but it hasn't flowered yet! Chances are, it simply needs to catch up with the rest of the world. After all, grow lights increase the photoperiod (the number of hours of daylight) the plant receives by two to three times what they'd get outdoors during this time of year. So if you have your String Of Hearts planted outdoors, bring it in and look at the base of its stems.
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The string of Hearts is a succulent perennial plant with sprawling vines. This attractive houseplant grows quickly and can last for a long time. Perfect for growing in flower baskets, the creeping vine has sticky, fleshy leaves with a marbled pattern and a unique purple shade. The plant also performs well as a soil cover when grown outside.

Also known as the Rosary Vine, this beauty has pink flowers that operate like fly traps. Tiny flies are attracted to the scent and get trapped in the violet peaks. They are released as soon as they are covered with pollen. The long, round, and tubelike blooms are attractive but not large and showy. The tiny flowers have a bulbous base, the apex having five melted petals. 

If you are thinking about a domestic plant that can bloom most of the year, the Rosary vine is the plant for you. The light-magenta flowers bloom abundantly from August throughout the autumn. Getting this beauty to bloom is not rocket science; as long as you provide the proper care, this plant may bloom all year round.

The string of Hearts Care

Generally, flowers appear on mature succulent plants; if your plant is still young, you may want to give it a bit of time. Most succulent plants require about four to six years to flower. The String of Hearts, flowers from the end of summer to the beginning of fall, with a flowering period of six weeks. Knowing how to care for your plants is essential in getting them to flower. Let’s check out some of the necessary conditions for your plant to bloom.

Light Requirements for the String of Hearts

Light is the most vital factor in flowering your String of Hearts. If you want your plant to grow massively and bloom profusely, place it where it will get bright but filtered sunlight. Dark leaves indicate that your plant is receiving a sufficient amount of light.

Low light conditions lead to pale and light green leaves. The scorching sun can result in sun-burnt leaves. In sweltering climates, go for afternoon shade. If you plant your String of Heart outside, the temperatures must be less than 60 degrees Fahrenheit. Expose your plants to a minimum of 3 hours of bright light each day.

Make sure your plant has morning sunlight; we recommend half a day. Proper lighting will encourage blooms. Would you please place it in a window facing east or south? Warm temperatures and extended days promote flowering. If you don’t get enough natural light, you can use grow lights.

A string of hearts outside receiving sunnlight.
Proper lighting will encourage blooms.

You can determine if your plants are getting the appropriate amount of light. Use a light meter, install a light detection application on your smart device, or perform an eye test. Then, rotate the plant occasionally for consistent growth and dust off the plants for effective photosynthesis.

The best soil for the Rosary Vine

The soil recommended for the Rosary grapevine is well-draining, preferably a cacti-potting mixture. However, the soil mix should not be rich as the plants may become leggy. If you opt for a regular potting mixture, mix with perlite or giant-grained sand for adequate drainage.

A cactus soil and equipments.
The soil recommended for the Rosary grapevine is a cacti-potting mixture.

Avoid heavy soils with large amounts of clay in them as they result in excessive moisture, which will cause root rot. You can also use an orchid blend by removing more significant pieces and adding perlite for better drainage.

Ideal Temperature and Humidity for the String of Hearts

Long periods of exposure to shallow temperatures will kill your Rosary Vine. Severe heat is also bad for this succulent. Warm temperatures and good air circulation will produce the best results. During winter dormancy, do not expose your plants to high moisture levels.

High temperatures, especially in summer, determine the blossoming chemistry of the Rosaries. You can move the plants outdoors, progressively exposing them to more heat until they get used to the hot temperatures.

A young string of plant outside.
Keep your plants cool and dry during winter by moving them into an unheated room.

Keep your plants cool and dry during winter by moving them into an unheated room. The main idea is to give similar conditions to their natural habitat. In addition, ensure nighttime temperatures differ from daytime temperatures. These temperature fluctuations are what trigger flowering.

Feeding Your String of Hearts

Plant food supplies the components required for flower formation. Feed your plant regularly with specially formulated succulent fertilizers. We recommend that you feed your plant every month while the plant is in total growth. Use a diluted fertilizer that is not rich in nitrogen; opt for a phosphorus-rich option like 10-15-10 to encourage flower formation.

Reduce feeding as you approach fall because your plant will need winter rest. Do not feed the plant at this time. It is best to fertilize while the soil is wet. Gradually raise from one quarter to half the intensity. Use caution as too much fertilizer will burn your plant; follow the packaging instructions when using a liquid plant fertilizer.

Watering needs for Your String of Hearts 

Water is necessary for the development of flower buds. Unlike other succulent plants, the String of Hearts enjoys watering more frequently but detests excess water. Aerate the soil before initial watering to free up any moisture and make sure the soil is dry. Use your finger to check humidity levels. Too much water leads to swollen leaves and loose leaves.

Water your plant in slow and gradual drenches. First, moisten the soil and wait a few minutes. Then, dampen the mud once more and wait. Repeat the process 2-3 times until the soil has sufficient water.

Drain any excess water and do not leave the plant in standing water, as this will kill your plants. You can add activated charcoal as a base layer into your pot if the container has no drainage holes.

Drain any excess water and do not leave the plant in standing water, as this will kill your plants.

The added layer will lead the excess water away from the plant. Charcoal not only absorbs excess water but also removes soil impurities, removes pests, resists mold, and eliminates odors. It works best on terrariums with closed covers.

During colder months, such as fall and winter, minimize watering as your plant moves from active growth to dormancy.

Potting and Repotting Rosary Vine 

Report your rosary vine after a few years because the plant does well in crowded containers. The best time to repot your plant is in the spring before the active growing phase when the plants burst with energy.

Repot your plant upon noticing the following signs:

  • Stiff and matted roots on the top layer of your soil
  • The roots are emerging from the drainage holes
  • Your String of Hearts dries out fast, and you need to water it more frequently.

Before repotting, first, find a well-draining succulent mix and humidify it. We recommend a blend of succulent mix and pumice. Pumice increases the drainage and aeration of your mixture, preventing root rot.

Carefully remove the plant from its original container since the vines are delicate. You can press the edges of the pot or run a knife inside to help extract the plant. Loosen the root ball before planting to allow new roots to grow.

Transplant into a container of similar depth. If the pot has more than one plant, separate them so that each plant will have sufficient space to spread its roots.

Choose plastic pots because they are non-absorbent and do not hold too much water. Provide new soil and trim some roots and leaves. 

Pruning

Pruning is not required, but you may cut off excess growth using sterile shears. Cut to the desired length under a knot, at which point a set of leaves grows from the stem. You do not have to remove stem cuttings, but you can use them to propagate new plants.

Additional Care

Inspect the underside of the leaves and keep track of pests. They compromise the health of your plant, but they will prevent your flowers from flourishing. Although the Rosary vine can overcome most of the problems, watch out for straps between the foliage and stems, which could indicate the presence of spider mites. Treat any infestation at once; alternatively, increase the humidity in your home.

String of heart plant flower.
The string of heart has a beauty pink flowers that operate like fly traps.

After Care for a Flowering Plant 

Once you have successfully flowered your String of Hearts, follow these additional steps to prolong the flowering period:

  • Add more fertilizer as blossoming consumes a lot of energy. For example, if you typically feed your plant on a quarter strength, you can increase to half strength and reduce once the flowers start to fade.
  • Expose your plant to plenty of sunlight. 
  • Give your plant more water at this stage and reduce watering once the flowers cease to bloom.
  • Keep the humidity low if you don’t want your flowers to wither fast.

The Bottom Line

Vase-shaped flowers are sure to draw attention. Whether you want to showcase the hearty plants or enjoy the distinctive flowers all year round, this beautiful indoor plant is a must-have. Give your plant time, and don’t forget that the most important factor is location.

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