Humboldt Roots is a concentrated organic root stimulant that expands the roots during the grow cycle. The soul of every plant lives in the roots. Many gardeners neglect this fact and concentrate on the visual aspects of their plants. A high yield is directly related to a plant’s metabolism rates, and plant metabolism rates are directly related to their root uptake of nutrients and fertilizers. Humboldt Roots was designed in expanding the root zone, resulting in large yields through increased metabolism.