Jonathan Green 10465 Crabgrass Preventer Plus New Seeding Lawn Fertilizer, 15 LbPrevents crabgrass and grassy weeds from germinating and allows you to plant grass seed on the same day without injuring seedlings. Contains 30% slow release nitrogen to feed new seedlings gently and longer. Smaller particles provide better weed control. Can be used with new sod lawn installations. Use as an alternative to the 1st Application in our New American Lawn Program when seeding. Contains Tupersan. 15 lbs 10 15 10 Covers up to 5000 sq. ft. It