Organic Weed Preventer plus Lawn Fertilizer 9-0-0 contains all organic corn gluten that stops weeds before they sprout, plus an organic fertilizer that greens up the lawn quickly. It also releases organic proteins into the soil to encourage root development. Use on lawns, landscape beds and in vegetable gardens for all of your yardwide projects. Apply in early spring for best results, and up to 3 times a year if needed. Safe to apply where children and pets play. This patented technology will prevent crabgrass, dandelions and over 20 other grassy and broadleaf weeds. Easy to spread, sugar-size particles. Do not apply grass seed for 60-90 days after applying this product.