Sul-Po-Mag is a unique 3-in-1 combination of highly available Sulphur, Potassium and Magnesium. It is mined from a natural deposit and is water soluble for easy application. Sul-Po-Mag is non-acid forming and does not increase soil acidity as is true with elemental Sulphur and Ammonium Sulfate.

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Plants remove significant amounts of Sulphur and Magnesium as they grow and develop. Sulphur and Magnesium are not replaced by many of today’s high analysis fertilizers.

Sul-Po-Mag has an analysis of 22% Sulphur (S), 22% Potash (K2O), and 11% Magnesium (Mg). Potash stimulates and promotes root growth and development and increases plant vigor, stem strength and resistance to many diseases.  Potassium is a key in the prevention of plant diseases. Magnesium is necessary to the formation of chlorophyll and is essential for plant utilization of Nitrogen, Phosphorous and Sulphur.


Light application: 7 lbs per 1,000 square feet, 1/4 cup per plant or 1 lb per 20 feet row

Normal application: 12 lbs per 1,000 square feet, 1/3 Cup per plant or 2 lbs per 20 feet row

Heavy application: 25 lbs per 1,000 square feet, 1/2 Cup per plant or 3 lbs per 20 feet row


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5 lbs, 25 lbs, 50 lbs


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