Stops crabgrass, spurge and many other weeds and annual grasses in lawns before they appear. Premium 23-3-8 turf fertilizer with iron provides for early spring green up. Controls weeds from seed for up to 4 months. Iron promotes dark green color. 25lb bag covers up to 5,000 sq. ft. 50lb bag coverss up tp 10,000 sq. ft. For best results apply: February to April. Step 1 in the IFA 4 Step and 4 Step Plus Lawn Care Programs. Apply around Easter for Best Results.