Aggregate Areas Pedestrian Scree areas Flower Beds Under Decking with Mulch Shrub Beds Vegetable Beds Vegetable Protection Lining Plant Containers Between Crocks and Compost Under Artificial Grass Weedcheck is a highly specified Spunbond polypropylene material designed to have the maximum effect on preventing weed growth, It also helps to retain moisture in the soil and stops the various mulches, including decorative aggregates, from being lost into the ground.