GreenView Fairway Formula Spring Fertilizer Weed & Feed Plus Crabgrass Preventer - 18 lb. bag, Covers 5,000 sq. ft. Triple Action Formula: Pre-emergent herbicide, lawn fertilizer, post-emergent broadleaf weed killer all in one easy application Kills more than 200 weeds and prevents crabgrass and destroys it up to four weeks after germination Not available for sale in AK, CA, HI Features both immediate release and controlled-release nutrients for up to 12 weeks of feeding DO NOT use on St Augustinegrass in Florida, or on dichondra and carpetgrass as serious lawn injury will result.