|This crapemyrtle grows in the tree form and can get as large as 75 feet. It produces purple flowers with a little cold hardiness. Seed heads follow flowers and persist throught the winter, adding an ornamental quality. Fall color ranges from orange to red, and smooth grey to reddish-brown bark is attractive year round.
Crepe myrtles should be grown in fertile, well-drained soil in full sun, in open areas where air circulation is good. In cooler areas, the crepe myrtle is grown more like a flowering shrub, that is pruned back hard to the ground each year. This is a massive no-no in zones 6b and higher. Prune to encourage a tree-like form, removing only suckering inner shoots, crossing branches, and side shoots 4 to 8 feet from the ground. If you can't remove side shoots with hand pruners, you should probably leave them. Lower suckers may be removed with loppers.