Scotts Turf Builder triple action built for seeding is formulated to help grow new grass and control against weeds while feeding and strengthening grass Now you don’t have to choose how to good care for your lawnyou can maximize growth with one application Jumpstart grass seed development so it establishes quicker and thicker, whether you are starting a fresh new lawn or reseeding an existing lawn Protect your lawn against annoying and bothersome crabgrass, dandelions and other pesky weeds for up to six weeks without harming your new grass It also feeds and strengthens your new grass to protect it against heat and drought For good results to grow grass fast apply with Scotts spreader to dry lawn, then water to activate Works with most grasses including Kentucky bluegrass, tall fescue, perennial ryegrass and centipede grass One 43 lb bag covers up to 1000 sqft New weeds will sprout white or turn white and quickly die This product will not kill existing weeds