Diamond Black 0-0-1
GH Diamond Black 6 Gallon (726844)
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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— Ships from SS: WA, CA, CO, MI, TN, PA, FL USA.