DeWitt Weed Barrier 12 Year is an easy-to-use, environmentally safe fabric that controls weeds before they start. Its unique design provides several advantages over conventional weed barrier products. It is fabricated using a spun-bond method, which sandwiches melt-blown material, forming a powerful 3-ply layer of weed protection. Plus, the fabric's higher carbon black content provides superior light-blocking capabilities to protect against the toughest perennial weeds. The design also prevents unraveling and makes the material easier to cut. In addition, DeWitt Weed Barrier 12 Year is hydrophilic treated, providing improved water and nutrient flow through the fabric. Excellent for Long-Term Landscapes.