Ground Cover Weed Control Screen Fabric Ground Cover is designed to reduce weed growth and help prevent erosion. This durable, woven fabric is manufactured using the highest UV resistant polypropylene available. The woven design allows both air and water to drain, reducing the risk of standing water. 12" marker lines make container alignment easy. Available in Premium and Economy. Characteristics: • Blocks weeds and reduces erosion • Long-lasting and UV resistant • 12" marker lines for pot alignment • Water permeable, mildew resistant • Use under gravel, soil, sand or straw • Resistant to many hort chemicals