Organic Calphos, 0-3-0 is an all natural source of collodial phosphate and calcium from ancient marine deposits of oceanic sediment.
Calphos contains valuable minor minerals in addition to phosphorous; it is not a standalone fertilizer.
It is not acid forming, will not cake or harden and spreads easily through any type of lime, phosphate or fertilizer spreader. It adheres and becomes a part of the soil; it will not leach and remains in the soil until used by plants.
Ingredients: Phosphate, Calcium.
We offer two forms
¤ Granular Calphos - has been finely ground and processed through the modern granulating plant with only natural materials being used to form the world’s only granular soft phosphate product. The granulizing process includes the addition of water and bentonite.
¤ Powder Calphos - is a finely ground product with the consistency of fine lime. 80% will wash through a 200 mesh screen. aka Standard Calphos.
Interested in reading more about organic soil amendments? We have additional information located on our Organic Soil Amendments page.
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- OMRI Certified. Total Phosphate (P2O5) 20%. Calcium (Ca) 20%.
- Available as Shop Pick Up Only.