Natchez Crape Myrtle pruning
I just planted A LOT of these Natchez Crape Myrtles around the perimeter of my property for the sake of privacy. I have a 4' high fence and want to keep the foliage of the trees starting at that 4' high mark. I understand that these trees will grow to 30' which I'm fine with. I just want to make sure that the leafy/flowering branches continue to begin at 4'. Is that possible without improperly pruning?