Garden Genie Humic Acid is 100% Organic Fertilizer. Humic Acid is extracted from compressed, ancient plant matter in the form of leonardite (a soft brown coal). It is an ideal additive to boost bio-activity and improve the performance of compost, soil structure and plant nutrients intake. It is an excellent soil supplement and helps in stabilizing nitrogen and releasing lock up phosphorus in soil. It also increases soil’s water holding capacity. It can help hold fertilizers in the root zone for longer periods of time and allow the plant to take up more nutrients. In hard-pan or compacted soils, an addition of Humic Acid Fertilizer can break up these soils and allow nutrients to penetrate deeper down to the root zone. Humic Acid are a vital component of nature’s life cycle, and they’re instrumental in maintaining healthy plants and soil.