Pennington 100536605 Crabgrass Preventer Plus Fertilizer, 37.5 lb, Solid, 30-0-4 N-P-K Ratio

This premium blended fertilizer is packed with essential plant nutrients to give you the thick, green lawn you desire. It has both fast acting nitrogen for quick greening, as well as slow release nitrogen for extended feeding for up to three months. With 5% iron this fertilizer will give you a deep, dark green lawn.