Made from seaweed harvested from the nutrient rich waters off the coast of Norway, Maxicrop Liquid Seaweed Plus Iron is a wonderful fertilizer for acid-loving plants and also serves as a biostimulant. This seaweed, Ascophyllum nodosum , is preferred for its high macronutrient and micronutrient content as well as the fact that it contains vital growth regulators and stimulants like cytokinins, gibberellins and amino acids. Benefits of Liquid Seaweed: Increased crop yields Resistance to frost Increased uptake of inorganic soil compounds Resistance to heat and drought stress Contains 2% stable iron ions that helps prevent yellowing (chlorosis) of leaves. Use as a foliar spray, root drench or soil treatment. Due to EPA regulations, this product label states that it is not intended for use on agricultural food site crops since it is now considered a plant vitamin hormone. Please call us at 1-800-827-2847 with any questions that you have regarding this issue or for suitable alternatives. Shop All Maxicrop Products here .