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Dr Forest
Dr Forest's Organic Sulphate of Potash Fertiliser. 41.5% Potassium
Dr Forest's Organic Sulphate of Potash Fertiliser. 41.5% Potassium
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£6.25
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EU Certified Organic Sulphate of Potash Fines. It is a natural mineral with 41.5 Potassium, 18% Sulphur and trace amounts of calcium and magnesium. Low in chlorine and low in salt.
41.5% Potassium & 18% Sulphur
Directions for use:
Soil Mix 0.75 – 1.25ml per litre of soil.
Top Dressing 0.1 – 0.5 ml per litre.
Outdoor 15 –35g per metre squared. Every 6 – 12 weeks during growing season.
