Crape Myrtles, Lagerstroemia indica, are considered large shrubs or small trees at 15 to 25 feet. They are fast growing plants that add vibrant color to a landscape. They make excellent specimen trees and can be used in groups. The flowers of Crape Myrtles can be white, pink, red, or purple. Depending on the variety of tree the flowers will bloom from July to September.
When Crape Myrtles are not in bloom they have another appealing quality, their bark. Many of the Indian cultivars like Natchez and Muskogee have beautiful bark that almost looks painted on.
Crape Myrtles are not hard to prune but are often pruned improperly in a manner called “Crape Murder”.
The ideal time to prune is January or February. Crape Myrtles should be pruned in an arch shape as shown in the diagram below.
Sources: Manual of Woody Landscape Plants. Michael Dirr. 1983