Ferti-Lome Slow Release Nitrogen Lawn Fertilizer 5000 sq ftContains polymer coated and sulfur coated urea which provides gradual, long lasting release of nitrogen to promote optimal uptake by lawn grasses. This formulation has proven to be the best for Southern lawns as well as cool season grasses. One application lasts for up to 2 months Slow released nitrogen formulation reduces lawn growth and grass clippings Designed to produce rich, green turf with minimal effort and expense New improved formulation