This easy-to-use pelleted mulch made from compressed, pure, weed-free straw is a great way to mulch your native lawn planting. Just sprinkle or spread after the seed is sown or the plugs are planted, then water. The pellets expand to form a layer that holds in water and protects fragile seedlings. With its added humic acid and natural nitrogen, your lawn or garden will be off to a healthy start. Also useful for fall mulching. 18 lb. bag covers approx. 200 sq. ft. 40 lb. bag covers approx. 450 sq. ft.