I have not grown them, but I found a website that claims to have plants which can be grown in all 50 states.

Do they have a name listed for the plant?

Mary Beth
Amana, IA

Here is a link that might be useful: crapemyrles.com

Notice the web site says they can be grown in northern states and Canada in pots that can be taken inside in the winter.Supposedly the hardiest crape myrtle, which as I recall is Hopi, is hardy to -15, maybe. I've seen it claimed that you can grow Hopi as a die-back to the ground shrub. Years ago I planted a couple when I gardened in Cedar Falls, and one of them did indeed come back from the roots for one year, getting maybe two feet tall, then disappeared. We just got back from Little Rock, and the crape myrtles were all in full bloom; it did make me ponder trying them again, but I'll pass... having a two foot tall crape myrtle doesn't do much for me.
Don