Lilly Miller, 20 LB, Covers 5,000 SQFT, Moss Out Granules, Containing 10% Iron To Kill Moss Quickly, 10% Iron To Green Grass To A Deep Green Color, No Fertilizer So Grass Greens Without Excessive Growth, Contains 32.0% Ferrous Sulfate Monohydrate, 68.0% Calcium Carbonate.