Made from all natural cellulose fibers, DeWitt Garden Weed Barrier is a 100 percent biodegradable paper mulch that decomposes at the end of the season. This garden paper mulch effectively eliminates weeds, helps reduce erosion, can moderate soil temperatures and can be worked into the soil after the growing season. DeWitt Garden Weed Barrier is available in both an Organic Formulation and a 5-5-5 Fertilizer Enriched Formulation. Made from premium recycled paper, DeWitt Garden Weed Barrier is chemical free and OMRI Listed, making it approved for organic food production.