DIAMOND BLACK 1 QUART
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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 the soil and increases micronutrient availability. Diamond Black can be added to all kinds of garden soil and potting mixes, and used with a wide variety of plants during all phases of growth.