@DaisyDo Well, my thought is they'd go dormant and get that cold snap they need to bloom. In Pennsylvania, I would cut them down and they were covered by snow for much of the winter but always came back big, strong and beautiful in the spring.
My greater concern was moisture. From what I've read, the rhizome needs to be dry, but the roots need a little moisture here and there. That's why I was thinking about just putting the whole container in so they wouldn't be as stressed from uprooting and all that.
Wondering if it has worked for anyone?