Carefully remove tubers and shake off excess soil. Store in a cool basement where temperatures range from 45 to 50 degrees. You can surround tubers with very lightly moistened peat moss. Check periodically during the winter for signs of tubers drying or rotting. Drying occurs with warm and dry storage conditions.
Bulbs rot when conditions get too warm and moist.
If you have further questions, please contact your county office of the NDSU Extension Service.