This liquid seaweed contains 2% iron. It is a unique combination of pure seaweed extract with readily sequestered iron in an easy-to-use liquid form. This high iron formulated product, when sprayed directly onto foliage, or applied as a root drench will prevent yellowing (chlorosis) of leaves, especially in acid-low (calcifuge) plants. Contains: 0.1% Total Nitrogen, 1.0% Soluble Potash, 2.0% Iron (Derived from Ascophyllum Nodosum Seaweed and Ferrous Sulfate) and not more than 1.0% of Chlorine.