I would agree with Julie about overwintering outside. For at least the last 5 years, I have been sinking the ones I still have in pots in the vegetable garden. I till the garden under and then I sink the pots and fill in between the pots with dirt. I will top dress with leaves/pine needles. I never have any problems. I have also heard were people put the pots in circle and then surround the pots with bagged leaves and throw some leaves over the pots. I stick with sinking the pots in the vegetable garden. I haven't lost any yet.
David (Zone 5, Upstate NY)
