Cisvio 3 ft. x 300 ft. Weed Barrier Landscape Fabric with U-Shaped Securing Pegs, Heavy-Duty Block Gardening Mat Weed Control LF-03300H50 - The Home Depot
Landscape Fabric - Weed Barrier Cloth does not work
Roundup Landscape Weed Preventer 5.37-lb 1000-sq ft Pre-emergent Weed and Grass Killer in the Weed Preventers department at Lowes.com