Crepe Myrtle Trees Not Blooming?

No!!! Do not Crêpe murder them. I have wondered why some of mine bloom and some dont. I pass by 3 20 foot crêpe myrtles everyday that are basically growing nearly the alley of these people's homes. They bloom the whole season and are full. There 4 crepe myrtles in the next block, I know the home homeowner, she does not fetilize, she waters them seldom and never prunes or clears out old growth. After reading site after site about this problem, I think, maybe, we myrtle lovers, over "tend" our trees. They might be an ornamental tree that would prefer a little neglect. And looking back to the first crêpe myrtle I had, I was newly married and 25, ran my own business.

I know I seldom did anything to that tree except make sure it was not murdered and was pruned very artistically, when I did prune it. It bloomed the whole season. I think I shall do a little more "laissez-faire" type gardening and see what happens. Keep searching myrtle lovers, I don't think any of the sites have given us anything but guesses and encouragement to buy stuff. Think about it, we have all seen crêpe myrtles in the middle of nowhere that are blooming like crazy.
I am going to ignore mine for a while.

Well, that wasn't the answer for Tennessee and Kentucky summer of 2021.
Huge 20 foot tall trees didn't bloom.
I rode down full streets all over the county and no blooms.

Weird and this year, I have just begun to get red and pink blooms on my bushes.
White was a week or two late, but most beautiful and full blooms ever.
,Nature is a bitch sometimes.