That is something I have never done, Sandy. I don't know whether large growers in the northern tier of states do that, but because they all seem to have their garlic very late (September) compared to me, I have a feeling they don't. It would be a good experiment, though I wouldn't overwinter more than half of what you plan to plant in the ground. You might want to hedge your bet. You'll be able to compare the size of the bulbs and that will pretty much tell you whether having them protected over the winter is worthwhile.
