E.B. Stone Organics Sul-Po-Mag

Sul-Po-Mag is a natural mineral called langbeinite that provides a concentrated source of potassium, magnesium, and sulfur. It is primarily used to correct nutrient deficiencies, support root development, and help plants process nitrogen more efficiently.

No, this product contains zero nitrogen and zero phosphorus. It is a specialized amendment designed to boost potassium levels and provide essential micronutrients without adding primary growth-stimulating nutrients.

It is safe and effective for both. You can use it on lawns, vegetable gardens, flowers, trees, and shrubs to improve overall plant resilience and color.

Yes, Sul-Po-Mag can help lower soil pH over time. It is a useful tool if your soil test indicates that your pH is too high and you need to make it more acidic.

No, this is a granular product that is not water-soluble. It is designed to be worked into the soil, where it will break down gradually to release nutrients to the plant roots.

Application frequency depends on your specific soil needs and plant types. It is best to perform a soil test first to determine if you have a potassium or magnesium deficiency before applying.