Scotts Turf BuilderThick'R Lawn Tall Fescue Mix has everything you need to help turn weak, thin grass into a thicker, greener lawn. With this 3-in-1 solution get up to a 50% thicker lawn with just one application, guaranteed! Thick'R Lawn contains soil improvers 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 easily with a Scotts spreader.