CalPhos® Soft Rock Phosphate — 4 lb. Granular

CalPhos is a natural, untreated soft rock phosphate with colloidal clay from Canton Mills. At 0-3-0 analysis with 3% available P2O5 (20% total P2O5) and 20% calcium, it delivers slow-release phosphorus and calcium without acidifying the soil. OMRI listed for organic production.

Key Specifications

• Analysis: 0-3-0
• Available P2O5: 3%
• Total P2O5: 20%
• Calcium (Ca): 20%
• Form: Granular soft rock phosphate with colloidal clay
• Package: 4 lb. heavy-duty resealable zipper bag
• Certification: OMRI listed for organic use
• Not acid forming — will not cake or harden

Applications

• Soil Amendment — Slow-release phosphorus and calcium for gardens and turf
• Organic Programs — OMRI listed, compatible with all organic production systems
• Transplanting — Apply at planting for root establishment support
• Compost — Add to compost piles to retain nitrogen and boost phosphorus

Available Sizes

• 1 lb. | 4 lb. | 20 lb. | 50 lb.