I am not familiar with the crepe myrtle flowers, so I don't know--depends upon the shape of the flower. Any tubular shaped flower can provide nectar for hummingbirds.

Lorna

Crepe myrtles aren't especially attractive to hummingbirds as a nectar source, although they will check them out (especially if the tree has red or pink blooms). But the open branching of a crepe can make for an attractive perch from which to guard a feeder or preen.

But there are plenty of butterfly plants that can and do attract hummers, since both creatures appreciate nectar-rich blooms. Most of us who aim to attract one end up getting some (or plenty) or the other too! It's definitely a win-win situation.

Hummers are especially attracted to anything red such as , a garage door handle , red string or ribbon. They will check these out , I have even seen them check out my tomato blooms, but anything trumpet shaped or tubular could contain nectar for them.