Disclaimer: This post was originally posted by Hero Member, cushman350. This user is located in Tomato Hell, Wichita Falls, TX Zone 7b. This was originally posted on November 25, 2012.
I seem to remember people covering the overwintering plants with straw for insulation and protection. In the spring, they remove the straw and there would be shoots under there. Straw breathes, plastic covers, not so much.