SOFT ROCK PHOSPHATE
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
Organic Fertiliser / Soil Amendment
1. Apply 2 teaspoons or 12 g per sqft of garden soil
1. Slow release
3. Replenish trace elements to soil
4. Contains high levels of calcium and silicon
5. Suitable for organic farming
Available in 500g packets.