What to do if Bougainvillea does not bloom
The editor introduces the experience of Bougainvillea not blooming and the maintenance skills for autumn care, specifically as follows:
Many varieties of Bougainvillea bloom frequently, usually blooming in spring and autumn. However, if not properly cared for after entering autumn, many Bougainvilleas will only grow leaves and not bloom. The branches will grow very disorderly, consuming a lot of nutrients without forming flower buds.
If you want Bougainvillea to bloom with full branches in autumn, you need to strengthen its maintenance management in August and September. As long as you follow the "1 cut and 3 supplements" method, new branches will quickly grow, and dense, bright flowers will bloom.
Prune and tidy the branches
Bougainvillea blooms on new branches, so in autumn, it is necessary to prune the disorderly old branches to promote the plant to sprout new branches and then grow flower buds on the new branch tips.
After a summer of rapid growth, the branches become thin and long, very disorderly, and also consume a lot of nutrients, affecting the normal formation of flower buds.
Pruning Bougainvillea in autumn mainly involves cutting the branches that are too tall and too long, shortening them all, cutting off the small branches on top, and cleaning up the small and useless branches inside. Also, remove some leaves from the dense foliage.
After pruning these disorderly branches, it can reduce nutrient consumption, increase ventilation and light between the branches, and by strengthening water and fertilizer care and lighting, new flowering branches can grow within about half a month.
Water appropriately to keep the soil moist
Bougainvillea has different water requirements at different growth stages. After pruning the branches, it is necessary to keep the soil moist because the plant needs to grow new branches quickly. If water and nutrients are insufficient, the new branches will grow slowly and become weak.
What to do if Bougainvillea does not bloom
During the period when the plant sprouts new branches, do not let the potting soil become too dry. Water thoroughly when it dries out, keeping the soil slightly moist and well-watered to encourage the plant to sprout new buds quickly.
When the plant has grown complete new branches, it is necessary to control the watering appropriately. This control is mainly to inhibit branch growth and not let it continue to grow leaves, but rather to let it grow flower buds and bloom.
Water control means not watering until the potting soil is completely dry. When the leaves are slightly soft and wilted, water thoroughly. After continuing this for a while, flower buds will grow on the branch tips, forming flower buds, and then normal watering can be resumed.
Supplement phosphorus and potassium fertilizers
After pruning Bougainvillea, you can start fertilizing to supplement nutrients within three to five days. This supplementation is mainly to encourage the plant to grow new branches quickly and make them stronger to bloom in large numbers.
After pruning, you can apply a multi-element compound fertilizer or pour some dilute fertilizer solution, so that the plant can sprout new buds within about a week.
When the plant has fully grown new branches, you start to encourage flowering. At this time, mainly use phosphorus and potassium fertilizers, applying a 1:1000 phosphoric acid potassium liquid fertilizer once a week, watering the roots while also spraying the branches and leaves. Soon, flower buds will grow on the branch tips.