Rock Phosphate 0-3-0 5 lb
$13.99
Down To Earth Rock Phosphate 0-3-0 5 lb
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.
OMRI Listed
CDFA Listed (Registered Organic Input Material)
In stock