Norway Gardens in Monticello, IN is carrying Mammoth Mums. Bred by the University of Minnesota for winter hardiness, they range in size from 12-36″ in height so check the tags. If they’re as hardy as purported, you’ll want to make sure you plant it in the right spot for the long run! Most mums don’t return (although there’s the occasional oddball that comes back every year). If you’ve grown Mammoth mums, let us know if they overwintered!