Biodegradable mulch mat provides easy organic and natural tree care. Position around trees to suppress weeds and prevent the need to trim close to vulnerable tree trunks. Allows water air and nutrients to reach roots. Helps retain moisture in early stages of growth of newly planted trees. Made from organic coco fibers and natural latex the mat will discretely do its job for a couple of seasons then naturally degrade. 8″ diameter 3 per pack.