We use only the highest quality, proprietary granular fertilizer and other products to ensure the best results. Our product is a nutrient rich blend of Phosphate, Potassium, Nitrogen, Potash and Iron, rather than Nitrogen only -- like most other companies utilize! Nitrogen is the ingredient that helps to green your lawn, but that's about as far as it goes. Our blend helps to develop a strong root system and actually feeds your lawn the nutrients it needs!