What are the maintenance points of Lagerstroemia indica?

(1) Soil utilization and fertilization. I like light loam with good drainage and high fertility, but it doesn't grow well in clay. Potted plants can be mixed with garden soil, humus soil, river sand, cake fertilizer or manure at the ratio of 3: 5: 1: 1. Like fertilizer, fertilizer is sufficient, which is the key to pregnant buds and good flowers. After autumn or early spring, the basal fertilizer mainly composed of decomposed human and animal manure or cake fertilizer can ensure the branch growth and flower bud differentiation in the following spring; Topdressing should be carried out in May-June to promote the growth of flower buds.

(2) moisture. Fear of waterlogging, drought tolerance, and need soil moisture during the growing season. Potted plants can keep the soil moist. When planting in the ground, water it once before germination in spring, and water it once every half month during the growing and flowering periods. Stop watering after flowering and water it once before winter.

(3) illumination and temperature. Like warm, slightly tolerant to shade, drought, cold resistance is not strong, the area north of Beijing needs indoor wintering. It is a positive tree species and should be planted in a sunny environment.

(4) plastic trimming. Resistant to pruning, mainly pruning in dormancy, supplemented by pruning in growth period. Pruning time in dormant period in North China should not be too early, otherwise it will be vulnerable to freezing injury. Good budding behavior. After defoliation or early spring combined with plastic pruning, it is generally clustered, leaving 3 ~ 5 main branches, thinning out long branches and particularly long branchlets at the same time, and leaving 2 branches of the current year for medium and short pruning. Cut off the remaining inflorescences after flowering to avoid consuming nutrition.

crape myrtle