All Categories
Derived from 100% pure Leonardite
Contains an exceptionally high percentage of plant-active humates
Improve nutrient absorption, stimulate microbial activity, promote soil structure
Not sold in FL
Not sold in IL
Diamond black is derived from 100% pure mined Leonardite, a naturally occurring form of carbon drawn from prehistoric peat bogs. Containing an exceptionally high percentage of plant-active humates, diamond black supports beneficial microbial activity in soils and increases micronutrient availability. Diamond black can be added to all kinds of garden soils and potting mixes and used with a wide variety of plants during all phases of growth.