Lilly Miller Moss Out Spot Treater 3lb Kills moss in lawns and flower beds quickly so you will see results in just hours. Product contains 10% iron which turns lawns a deep green without excess growth for less mowing. Covers up to 600 square feet. Use this product on lawns and flower beds only. Easy to use shaker canister Kills Moss Quickly! See Results In Hours Ready-To-Use Granules Kills patches of unwanted moss