Scotts 30075 Turf Builder Thick'R Lawn Sun & Shade Fertilizer, 40 LbsScotts Turf Builder Thick'R Lawn Sun & Shade has everything you need to help turn weak, thin grass into a thick, green lawn. With this 3 in 1 solution, get up to a 50% thicker lawn with just one application*! Thick'R Lawn contains soil improver for enhanced root development, seed to fill gaps with new grass, and fertilizer to feed new grass and thicken and green existing turf. This product is intended for use on an entire lawn and can be applied