Well, Fl. like Ca. has a lot of different climates. It isn't just about cold hardiness or even high temps.. You don't have desert or mountains to deal with like we do, but you still have rain and humidity, as well as the occasional freezes. I don't know if your Sunset zone maps have the same info t the different zones that we have on the west coast, as I didn't know they were even on the east coast until this year, but I find it invaluable info here.