rock phosphate 0-3-0 5lb

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Product Description: 

Down To Earth Rock Phosphate 0-3-0
Soft rock phosphate, or colloidal phosphate, is a natural, untreated source of long-lasting phosphate and soil-building calcium. Phosphate will remain available across a wide pH range. For best availability, soft rock phosphate should be mixed into soil or compost prior to planting.

5 lb. Box

OMRI Listed
CDFA Listed (Registered Organic Input Material)