Zone 4 Success!
Everything I planted last summer seems to be coming back, even the wisteria! I found two kinds of wisteria that are supposed to be hardy here. I planted Aunt Dee. Last year it never grew enough to flower. The other kind is Blue Moon, which I couldn't get. Apparently they're hard to control in warmer climates, but I'll be really happy if I can just get it to bloom this year.