Down to Earth Bio-Turf is a 4 pound box of fertilizer with 8-3-5 formula and is listed by the Organic Materials Review Institute (OMRI) for use in organic production Entirely natural granular lawn fertilizer designed to encourage deep root development to help reduce watering requirements Nitrogen-rich formula boosts early season growth while its extra Potassium reduces seasonal stress due to temperature change and drought Ideal for heavy feeding garden vegetables like corn, tomatoes and leafy greens Derived from: Hydrolyzed Feather Meal, Blood Meal, Meat Meal, Bone Meal and Langbeinite