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Gaia Green Rock Phosphate


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2 kg eligible for Free Shipping

10 kg and 20 kg are heavy items. Not eligible for Free Shipping

Rock Phosphate is a naturally occurring mineral which is ground to a fine dust to improve the release of phosphorus for plant growth. This powdered mineral is then granulated with a natural binder called lignosulfonate. This granulating process produces a consistently sized particle which is easy to apply and is completely free of dust. After application, the pellets dissolve in water, returning the rock phosphate to a powder form. In addition to its binding qualities, Lignosulfonate naturally chelates the trace minerals in the rock phosphate, helping to improve availability.

Plants with high cation exchange root systems (legumes and grains) are found to be effective in obtaining phosphorous from soil and rock phosphate. This product is very effective when used in conjunction with cover cropping programs. Gaia Green Rock Phosphate contains 27% total phosphate with 3% immediately available.


Gaia Green Rock Phosphate is approved for use in organic agriculture by Ecocert Canada (in compliance with Canada’s Organic Production Systems General Principles & Management Standards and Permitted Substances Lists (CAN/CGSB 32.310-2015 and CAN/CGSB 32.311-2015)


  • A natural phosphorus fertilizer that is easy to apply.

  • Rock Phosphate can be a good amendment for replenishing soil phosphorus supply in depleted soils.

  • Rock phosphate slowly releases phosphorus over many years.

Guaranteed Minimum Analysis

Available Phosphoric acid (P₂O₅) ………………………3.0%

Calcium (Ca) ……………….....................……………25.0%

100 Mesh TYLER Screen ……………..………………80.0%

Derived From

Natural Rock Phosphate

Directions for Use

Gardens and Landscapes: Broadcast and incorporate up to 4.75 kg per 50 m2 (19 lbs per 1000 ft2) annually.  

Pre-mixing soil for hanging baskets, potted plants, and planter boxes: Blend at a rate of 45 ml per 4 L (3 tbsp per gallon) of soil or growing medium. 

Top-dressing hanging baskets, potted plants and planter boxes: Add 15 ml per 4 L (1 tbsp per gallon) of soil or growing medium. Gently dig into soil surface. Apply once a month. 

Store in a cool, dry location, out of direct sunlight. Protect from frost and other climatic extremes. Seal packaging between uses.