Wisteria in Iowa: good? bad? hardy?
I'm just curious if anyone here is near zone 5b/Iowa and grows Wisteria, and whether you've had problems with it being aggressive/invasive, or whether it's well-behaved, or not even hardy, or anything else in particular. Have heard it can be aggressive, and I do NOT want to get into another plant war such as the one I LOST against trumpet vine at our old place. :)