Scotts Turf Builder Triple Action Built For Seeding is specially designed to be used when planting new grass; it jump starts grass development so grass grows quicker and thicker. Use this new grass fertilizer anytime, whether you are starting a new lawn or reseeding an existing one. Does not contain grass seed. Use this new grass fertilizer anytime, whether you are starting a new lawn or reseeding an existing one. Built for Kentucky Bluegrass, Tall Fescue, Perennial Ryegrass, Centipedegrass and Fine Fescue. One 17.2-lb. bag covers 4,000 sq. ft.; for best results apply using a Scotts spreader then lightly water in to activate. Active ingredients: Mesotrione: 0.08%.