A superior homogenous blend of fish meal, fish bone meal, feather meal, potassium sulfate, alfalfa meal, calcium sulphate, seaweed extract, micorrhizae and beneficial soil microbes. This is a wonderful fertilizer. Dr. Earth promotes a hardy root system thereby adding life to your lawn. It also controls thatch build up. Best of all, it contains Mychorriza which grows in your soil; greatly enhancing the quality of environment for the soil that your lawn grows in.