Crepe Myrtle, Lagerstroemia indica.

HTH
Chris

Crape myrtle.

They actually bloom most prolifically when they are cut back "hard" each winter. Because they bloom on "new wood", any pruning that forces more new wood, encourage more bloom.

Joe

Except cutting them back hard can make them look very ugly. Called "crepe murder", it is commonly done apparently because everyone else does it. Also, all the new growth often gets knocked down in the afternoon thunderstorms that much of the south gets in the summer.

The only pruning I would do is to clip off the old blooms.

Thank you :)