Crepe myrtles are so pretty - flowers in the summer, nifty bark and branches in the winter months. Just don't plant it too close to your house - they aren't foundation plants.
The guy who owned my house in Louisiana before me planted one moderately close to the house and on the same side where the power lines came through. Maybe he was planning for the myrtle to be butchered annually to "keep it in control" but I only pruned it, and pruning it around the power lines was loads of fun . Hate the pollard look.

You *are* going to let yours grow free and not prune it back to 6 ft nubbins, right??