Kath, I can't overwinter outdoors, but I do overwinter in a room that is between 45-60 all winter.
And I do exactly that: I dig them up before the first hard frost, wash the roots thoroughly in a bucket of water until they are bare (basically by grabbing the stalk and dunking them up and down), sprinkle with a little myco, and then replant - in pots for over wintering or in the beds in spring. I never transfer soil between the two. That helps me see the root ball to diagnose any issues, and to ensure that any pests are not transported back and forth.
So each plant is dug up twice a year. They don't seem bothered by it.
I use Tania's recipe for container soil for the over wintering.
Last edited by ScottinAtlanta; June 5, 2014 at 10:06 AM.
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