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General Organics Diamond Black Humic Acid Supplement
- 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.
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