attention should be paid to pruning when planting Lagerstroemia indica. When transplanting larger Lagerstroemia indica, it should be re-cut before planting, and the trunk of a certain height can be set according to the cultivation needs, and all the crown above the ground should be cut off, so that the new crown will grow vigorously and neatly. During the young period of Lagerstroemia indica, the lateral buds at the lower part of the stem should be removed at any time, so that the terminal buds and upper branches can get more nutrients and grow healthily. After defoliation or before germination in early spring, proper thinning is carried out, such as thinning the long branches, competitive branches, weak branches, diseased branches, withered branches, etc., so that the branches are evenly distributed and form a complete and symmetrical crown; Cutting off the top 1/3 of the remaining branches can achieve the effect of full trees and flowers. In the growing season, after the first flowering in summer, cut off the flower branches in time to promote the development of new branches to prolong the flowering period (crape myrtle blossoms at the top of the new branches).