FEEDS LAWNS FOR UP TO 3 MONTHS - This lawn fertilizer has an analysis of 20-0-3. It provides gradual, consistent nutrient release for up to 3 months. Our crabgrass preventer plus fertilizer cannot be used at the same time as seeding a new lawn. PRE & POST EMERGENT CRABGRASS CONTROL - Veri-Green Lawn Food with Crabgrass Preventer provides season-long crabgrass control. It kills crabgrass both before and after germination. CONTROLS OTHER WEEDS & GRASSES - In addition to controlling crabgrass, our herbicide controls the following grass and broadleaf weeds when applied prior to their germination: goosegrass, dallisgrass, chickweed, henbit, oxalis, spurge, and more. EASY TO APPLY - Veri-Green Lawn Food with Crabgrass Preventer should be applied using a rotary, drop, or hand-held spreader. It does not stain hands, shoes, or walkways. COMPLETE COVERAGE - This 50 lb bag covers up to 15,000 sq. ft. The best time to apply is in the spring prior to the germination of crabgrass and other grassy weeds.