I live in Dallas, Texas and have some crepe myrtle trees that are about to get into power lines (four of them with probably 15-20 shoots of one-inch diameter and approximately 20' tall). My question is, since these trees are already putting on foliage (no blooms), is it too late for pruning back considerably? Will it kill the plants?
Is It Too Late to Prune Crepe Myrtles?
Certified GKH Gardening Expert
Generally, any light trimming should be done just following blooming while hard pruning should wait until late winter/early spring. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/trees/crepe-myrtle/best-crepe-myrtle-pruning-time-when-to-prune-crepe-myrtle.htm