Organic Lawn Fertiliser 10-3-3.5 | High Nitrogen Grass Feed | Dr Forest peat-free compatible Gypsum source: Naturally mined mineral

Gypsum source: Naturally mined mineral calcium sulphate — quarried from geological deposits of natural gypsum rock

Drip irrigation on a timer is the most reliable method under glass

Drain freely — waterlogging rots tubers

Yes — it is suitable for vegetables

Rate: 6 ml per litre of soft water | Frequency: Every 2–4 weeks

Organic Lawn Fertiliser 10-3-3.5 | High Nitrogen Grass Feed | Dr Forest peat-free compatible Gypsum source: Naturally mined mineral60 g m2 per Joe. Cost section added from live Shopify prices. >60 g m2 per Joe 2026 07 04 (max delivered N now 6. 0 g N m2, in line with the ~5 g m2 single dose norm for slow release organic N). Blog uses 25 40 g m2 because it covers the straight 13% N Nitrogen Fertiliser, a different product. > Overview Ingredients How to Use The Science FAQ a professional grade, high nitrogen lawn feed that greens fast and feeds for weeks Professional Grade High