 It may happen if we do have a really cold, cold winter where it's getting below 20 or 15, then just mulch the base. Cover the base with some sort of organic material or even just wrap towels around it. Keep something on there that'll help hold the warmth from the soil at the base of the plant and then it will overwinter. It's a great plant and just takes a little extra work in exchange for that. You get lots and lots of color.