Can I overwinter Alpinia zerumbet in zone 7b?
HI All-I purchased 7 variegated shell gingers late summer and have them in ground. They really took off, but now have some frost damage. I am in NC, zone 7b and was wondering if they will overwinter here if I mulch them with leaves. Any help will be appreciated. If they aren't hardy I need to dig them up pronto! Thanks!