GreenView® Fairway Formula Spring Fertilizer Weed & Feed and Crabgrass Preventer is the only product you will need in the spring to get that lush, green, weed-free lawn you deserve. This proprietary blend is our one product that does it all: Prevents crabgrass for up to 4 months, kills over 200+ weeds (including crabgrass seedlings), and nourishes your lawn for up to 12 weeks with our proprietary blend of immediate and slow-release nitrogen. For best results, apply in the spring when dandelions begin to bloom. For use on established bahiagrass, bermudagrass, buffalograss, centipedegrass, fine fescues, Kentucky bluegrass, perennial ryegrass, tall fescues, and zoysiagrass. Professional Results, Guaranteed.