Latest Analysis of Why Christmas Cactus Won't Bloom

The Christmas cactus is famous for its branches and buds that look like crab claws. Many people grow it just to see its crab-claw-like stems covered in a pot full of vivid flowers, but some people grow a Christmas cactus for several years and although it grows well, it simply won't bloom. What causes this? Let's take a look.

1. Light

Light is an important source for photosynthesis in plants, and plants cannot grow without light. The Christmas cactus is a short-day plant, so its daylight hours should not be too long and are best kept at around 8-10 hours. If the daylight period is too long or too short, it will affect its blooming. For example, if it receives more than 12 hours of light per day, it will be difficult for it to form flower buds. Besides natural daylight during the day, artificial light at night will also affect its blooming. Therefore, its light exposure time must be strictly controlled. Whether day or night, after it has received enough light, do not let it receive any more light.

2. Temperature

Temperature is also very important for flowers. The suitable temperature for the Christmas cactus is around 20-25 degrees; its optimal growing temperature is 20-23 degrees, and the blooming temperature is best kept at 10-15 degrees and must not exceed 25 degrees. In the low-temperature environment of winter, the Christmas cactus develops more slowly, and at this time flower buds are very prone to temperature damage. When the temperature is below 0 degrees, the flower buds will be frozen and damaged, so only by keeping the temperature at 15-20 degrees can normal development of its flower buds be ensured.

3. Watering

If a cultivated plant is to grow and develop normally, it cannot do without watering. Watering should be carried out according to the plant's growth habits. The Christmas cactus likes to live in a semi-shaded, humid environment, so pay attention to the amount of water when watering normally. It does not easily die when lacking water, but when there is water accumulation it is very likely to die. During cultivation, be sure not to water frequently, and pay attention to the amount of water to avoid death from water accumulation. In addition, during the flowering period, water should be controlled and fertilizer stopped. The Christmas cactus is extremely sensitive to water during its flowering period. Too much water easily causes bud drop, and in severe cases causes root rot from water accumulation, while lack of water makes the flower segments wilt and the flower buds cannot develop and mature. You can keep the potting soil moist, ideally so that it does not scatter when pinched by hand, and spray a mist of water once every day at noon.

4. Fertilizer

Flowers cannot bloom without fertilizer. Fertilizer provides various nutrients needed for plant growth and development, especially for plants that bloom. Their own metabolic rate is high and they consume relatively more nutrients, so pay attention to applying more fertilizer before flowering, but stop fertilizing during the flowering period. In addition, when fertilizing, be careful not to apply too much nitrogen fertilizer, so as to avoid excessive vegetative growth of the plant, which can lead to failure to bloom.

  The above is an introduction to the related content on why the Christmas cactus won't bloom. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.