I have two bird of paradise seedlings (actually about 4 months old but VERY slow growing) and now that fall is here, I don't know what to do with them. I'm in zone 7, so should I move them into a greenhouse, or leave them them where they are? Will they be safe away from their natural habitat? I'm leaving this up to you guys (and girls). P.S. This is the Orange variety and not the Giant White.