How to prune crape myrtle?

When the planted Lagerstroemia indica grows to a certain height, leave the trunk of 40 ~ 50 cm for topping, so as to promote the lateral branches to emerge from the trunk and prevent them from growing into clumps.

Organic fertilizer should be applied as base fertilizer when planting, and once a year after autumn. Pay attention to irrigating and loosening the soil in dry season, and often intertillage and weed in growing season to prevent and control pests and diseases in time. Because the flowers of Lagerstroemia speciosa bloomed at the top of the branches in that year, in order to make them bloom more, they should be pruned in winter. Generally, only 3 ~ 5 cm is reserved for short cutting of each branch to promote the germination of more new branches. In summer and autumn, flowers can bloom all over the tree. When pruning every year, all the dead branches, delicate branches in the inner room, branches of diseases and insect pests and sprouting branches at the base should be cut off, so as to concentrate on supplying nutrients to the flowering branches and make the trees neat and beautiful. If the old branches are not pruned for a long time, the plants will grow taller and taller, the flowering position will move up year by year, the flowers will be scarce and the tree shape will be ugly.