Thank you Donald! I use a cold room for all of my dormant plants, it's probably 50 degrees most of the time, maybe a wee bit colder if it's below 10 degrees outside. I have an old house and that room was where the coal chute used to be (bricked over with glass block now) but it's a cool, dry basement room.
I may take cuttings and let the rest of the plant go dormant. I like to hedge my bets. Not to mention, I'll have extras in the spring if my dormants re-sprout.