Last fall I dug up an area with Bermuda grass and possibly other weeds. I didn't want to dispose of the soil and I got as much of the Bermuda out of it as I could see. I left it outside in plastic Wal-mart bags (double bagged) during the really cold winter. Two questions. What happens to soil in a plastic bag over several months (five in this case) when it is bagged up. Some air can get to it and possibly moisture. Do the living things - the micro-organisms - in the soil do ok or does the soil lose its nutrients/health from being in plastic? What about the really cold weather - it got to 0 a couple of times here and was the coldest winter on record in many years. Does that affect the soil? It was stored against a brick wall in shade but above ground. Just curious.