GreenView Fairway Formula Spring Fertilizer Weed & Feed + Crabgrass Preventer performs three tasks: providing a crabgrass preventer, lawn fertilizer and broadleaf weed kill in 1 single lawn application. Everything is rolled into 1 for the spring. In addition, the broadleaf weed control is effective on over 200 weeds as listed on the label. Crabgrass is prevented and destroyed up to 4-weeks after germination, so you apply it when the dandelions bloom. This formulation also features both immediate release and controlled-released nutrients that provide continuous feeding for up to 12 weeks. This GreenView spring lawn fertilizer and weed control product is for use on established bahiagrass, bermudagrass, buffalograss, centipedegrass, fine fescues, Kentucky bluegrass, perennial ryegrass, tall fescues, and zoysiagrass.