Will bougainvillea bloom without sunlight? Why does bougainvillea only grow leaves but no flowers?

Bougainvillea, also known as bougainvillea, is a shrub with thorny stems and beautiful flowers. Some bougainvilleas can grow very tall. So will bougainvillea not bloom if it is not exposed to the sun? Why does bougainvillea only grow leaves?

Will the bougainvillea bloom without sunlight?

Bougainvillea is a plant that strongly loves light. It is difficult for it to bloom if it does not get sunlight or does not get enough sunlight. Therefore, when caring for Bougainvillea, you must give it the most abundant sunlight, from morning to night. I even expose Bougainvillea to the sun in the summer. It will only bloom if it is given enough light. Most plants that bloom diligently are very sun-loving.

For the same bougainvillea, if half of it is in scattered light and the other half is in full sunlight, you will find an obvious difference. It will bloom well in places with sufficient light, while in places with scattered light, the branches and leaves will be sparse or even no flowers will bloom at all. Therefore, if you want to grow bougainvillea well, the most critical maintenance principle is big sun, and secondly, just give it enough fertilizer and water. If it is a variety that blooms frequently, it will bloom naturally. If it is a lazy variety, it will also bloom in autumn and spring.

To care for bougainvillea, just give it plenty of water and fertilizer, let it grow lush branches and leaves, and then give it sufficient sunlight, so that it will bloom naturally. Generally speaking, the varieties that bloom frequently will bloom continuously in spring, summer and autumn. Even as long as the temperature and light are right, it will bloom all year round. The varieties that bloom lazily will bloom twice a year, in spring and autumn.

Why does Bougainvillea only grow leaves but no flowers?

1. There are many varieties of bougainvillea, and the flowering period is different. Different varieties require different light exposure time. Some varieties bloom more the longer the light exposure time. Some varieties will not bloom if the light exposure time exceeds 12 hours. They will only bloom when the light is suitable.

2. Bougainvillea generally will not bloom or will bloom very little if the light exposure time is less than 5 hours.

3. Failure to control water before flowering. Most varieties of bougainvillea need to be watered before they can produce flower buds. If you miss the time to control water, they will not bloom.

4. Nitrogen fertilizer is applied when the flower buds are in the stage of development. If nitrogen fertilizer is applied when the flower buds of Bougainvillea are in the stage of development, the flower buds will fade away and the branches will continue to grow.

5. The planting medium is not right. Some varieties cannot be grown using nutrient soil. It is best to use slightly acidic mountain soil + humus soil, half and half for planting bougainvillea. Don't worry about the soil becoming hardened. Bougainvillea is not afraid of soil hardening. It will bloom even if the soil becomes hardened.

How to grow bougainvillea so that it blooms easily

variety

Bougainvillea can be roughly divided into two categories, vines and shrubs. Climbing bougainvillea has relatively flexible and slender branches, and can climb houses. Once planted for a few years, it can wrap around the house and form a flower wall. Shrub bougainvillea is more used for modeling or bonsai.

Fertilization

Bougainvillea needs base fertilizer, which can be bone meal, chicken manure, etc. The role of base fertilizer is to ensure the continuity of flowering. In addition, it is necessary to apply fertilizer again every month or so. You can dig a few small holes in the soil, pour chicken manure and other fertilizers into the holes and then cover them with soil. In addition, you can add some liquid fertilizer when watering every day. The trick to growing flowers is to apply thin fertilizers frequently. Use "phosphorus and potassium" fertilizers in moderation to promote root growth and improve the disease resistance, cold resistance and drought resistance of Bougainvillea.

sunshine

Bougainvillea needs sufficient sunlight to grow well. More than 4 hours of sunlight a day can ensure vigorous growth of the plant and promote flowering. A ventilated environment can ensure the delivery of fresh oxygen to the plant, so good ventilation is required.

Water Control

"Don't water unless the soil is dry, and water thoroughly when you do." Bougainvillea is afraid of waterlogging. If you water too frequently, the roots will rot and die. This is the real reason why most Bougainvillea die. Therefore, you must water Bougainvillea when the soil is dry and wet, and water it only when it is completely dry. Sometimes the soil surface is dry, but the soil underneath is still wet. If you water it at this time, the roots will easily rot and die. You can insert chopsticks into the soil to observe the dryness and wetness of the soil.

Pot soil

The potting soil requirements for maintaining bougainvillea are loose and breathable without water accumulation and compaction. The pH value is slightly acidic. Then we use the configuration soil to maximize the advantages and avoid the disadvantages. Use leaf mold, farmland soil, and mountain gravel to mix one-third each to maintain bougainvillea. This can meet the reasonable potting soil requirements.