Roger - I live in Ottawa and my experience has been about 50% survival rate if I don't bury the pots. But having said that, last year I had a lot of 'Blue Cadet' that had to be dug in October (we put stones where a small, useless garden was while having all our other stonework redone). I laid them on their sides at the back of my veggie garden and they all came through OK. But my preference is to bury them in my veggie garden.
