Earth Science Fast Acting 2.5 Lb. 1250 Sq. Ft. Coverage Iron & Soil Acidifier

Fast acting iron plus AST (advanced soil technology) is a premium combination of iron, sulfur, and calcium. Long lasting formula that greens up lawns quickly and is easy to apply with any spreader. Non-staining, non-burning, goes to work quickly. AST improves the physical characteristics of the soil for maximum performance.