Phosphorous runoff is the #1 cause of algae blooms that choke ponds, lakes and streams. Help reduce phosphorous runoff with No-Phos Fertilizer (6-0-6). It provides plenty of nitrogen and other nutrients for a lush green lawn, but it won't pollute waterways. Phosphorous-free fertilizer protects waterways. 100% natural and organic formula. Provides nutrients for a lusher lawn, brighter flowers. Use our Roto Spreader for easy application. 25-lb bag covers 1,250 sq ft All-natural 6-0-6 fertilizer Contains granite meal, aragonite, sulfate of potash, nitrate of soda, feather meal