I have grown Nutmeg Elf for more than 10 years in Michigan (zone 5) with no problems what so ever. It increases well and sets pods super easy. I also grow Itsy Bitsy Spider and have had it approximately 5 years. Unfortunately, I can not tell you what they currently look like as that rotten white stuff is still on the ground. Although I can say daylilies that are planted close to the house where the snow is melting are starting to pop out of the ground which is a bit early.