Bottom line:  To protect a raised garden bed from frost, use a space blanket.  Or, better yet, use a piece of construction radiant barrier.  Same idea, but much tougher material.  Alternatively, use glass jars to cover individual plants. I tested these methods, using temperature data loggers, and you can get anything from 5 to … Continue reading Post G22-005: Frost planning. Dodging the last breaths of Old Man Winter