Flowers are purplish red or pink, and more than 2- 10 flowers are clustered on old branches and trunks, especially on trunks. When they reach the upper young branches, they usually bloom before the leaves, but the flowers and leaves on the young branches or plants bloom at the same time, with a length of 1- 1.3 cm; Pedicel 3-9 mm long; There are deep purple stripes at the base of keel flap; The ovary is tender green, the bud is bright and hairless, and it is densely pubescent in the later stage, with 6-7 ovules.

cultivation techniques

Water and fertilizer management

Bauhinia tree Bauhinia likes humid environment. Water immediately after planting, the second time on the third day and the third time on the sixth day. After the third time, water according to the weather to keep the soil moist and free of water. Water and spray leaves in time in summer, and drain water in time after rain to prevent water from rotting roots. If the temperature is not high after autumn, we should control the moisture to prevent autumn hair. Pour enough antifreeze water before winter. Water the green water at the beginning of March of the following year, except in July and August, depending on the precipitation. From April to 10, water once each, and water antifreeze before winter. Water the same in the third year, and manage it normally in the fourth year, but the antifreeze water and green water should be thoroughly watered. If possible, water should be poured once in the middle and late April and late September, and the growth will be reliable in other seasons. Some people think that bauhinia is drought-tolerant and afraid of waterlogging. In fact, bauhinia likes humid environment, but it can't grow in stagnant water.

Bauhinia likes fat, but when it is full of fat, it has lush foliage and bright flowers. When fertilizer is scarce, the branches and leaves are sparse, and few flowers are pale. Plantar fertilizer should be applied when planting, and it is best to use rotten leaf fertilizer, ring fertilizer or dried chicken manure, and mix it with planting soil fully before use, otherwise it will burn the root system. After normal management, nitrogen fertilizer is applied once a year after flowering to promote vigorous growth, and phosphorus and potassium compound fertilizer is applied once in early autumn, which is beneficial to flower bud differentiation and safe wintering after lignification of new branches. Combined with the freezing water in early winter, cattle and horse manure were applied. If the plants are not growing well, 0.2% (Trim) potassium dihydrogen phosphate solution and 0.5% urea solution can be sprayed on the leaves.

Plastic trimming

Bauhinia is often used as a shrub in the garden, so pruning should be strengthened from the beginning of seedling tending to form a good plant shape.

After transplanting, the seedlings can be light or short, which can promote more branches, expand the nutrient area, accumulate nutrients and develop the root system. In the next spring, it can be pruned repeatedly to make it grow new branches. Choose three branches that grow well and keep them, and cut off all the others. Strengthen water and fertilizer management during the growth period and pick the remaining branches. After planting, it is necessary to pull out the redundant sprouts in time, care for the branches left over from the previous year, and do more coring treatment so as to have more secondary branches.

The regeneration of flower branches should be strengthened in cultivation. Practice has proved that there are few flowers in the old branches over 5 years, and the flower buds move up, which affects the appreciation and should be updated in time.