Crepe Myrtle

Question

Do I cut old flowers off the tree ?

Answer 1

If you can reach them easily, you can trim them off to make a neater looking shrub/tree.

However, if they are out of reach, just leave them. They won't hinder blooming next season.

https://www.gardeningknowhow.com/ornamental/trees/crepe-myrtle/crepe-myrtle-care.htm