Rock Phosphate (50 lb)

Calphos™ is a natural, untreated Soft Rock Phosphate (0-3-0) with colloidal clay containing valuable trace minerals in addition to phosphorus. Since phosphorus is lacking in most soils, applications are a must for superior results. Contains a minimum of 3% available (and a minimum of 20% total) phosphoric acid (P2O5) and 20% Calcium (Ca). OMRI Listed for use in organic production.

Once applied, Calphos™ remains in the soil until used by the plants - will not leach. Ideal for fruiting and flowering plants, it stimulates strong root formation, hastens crop maturity and encourages earthworms and soil bacteria.

Directions for Use:
Broadcast 50 lbs. per 1,000 sq. ft. or side dress around existing plants.