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Soft rock phosphate (also known as colloidal phosphate) is a colloidal, clay-based rock phosphate.


Ca 19%, Si 15%, P 8%, Fe 2% K 0.7%, TE

Product Type 
Organic Fertiliser / Soil Amendment

Application Method 
1. Apply 2 teaspoons or 12 g per sqft of garden soil


1. Slow release

2. Microbe-friendly

3. Replenish trace elements to soil

4. Contains high levels of calcium and silicon

5. Suitable for organic farming

Available in 500g packets.

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