2.5 oz Frost Blanket - Heavy weight blanket for freeze protection and over-wintering. Durable and effective blanket for over-wintering perennials and other ornamentals. Designed to hold heat in and allow irrigation and rain to pass through. Will not cause foliage burn even on sunny days. Provides 10° freeze protection. 40 light transmission. 12' x 250', wt 65 lb. Priced per roll.