Winterberry irises do very well here. They grow and bloom without a hiccup after newly planted. The rebloomers do not have to be pampered and are always reliable bloomers. Some of my best performers are their irises. Besides that they are friendly and helpful, always answer emails when they are open for business and stand behind their product. Speaking of rhizome size theirs are not as big as potatoes but I get more performance and increases out of theirs than I do with the large rhizomes that have to acclimate to my hot zone. Their prices are great and they are good for really nice bonuses. One of my favorite vendors.