Potassium Sulfate
Potassium Sulfate - 5 lb Granular is backordered and will ship as soon as it is back in stock.
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Care information
Care information
Please store this product in a temperature and humidity controlled environment, preferrable out of direct light.
Delivery and Shipping
Delivery and Shipping
We ship same day if the order is placed before 3 pm.
Potassium Sulfate
Potassium Sulfate contains potassium (K) and sulfur (S) – two of the essential nutrients that plants require to achieve optimum growth and reach their maximum potential.
Description
Description
Potassium Sulfate — premium SOP granules from The Soil Makers, engineered to support a vigorous root system, strong plant growth, disease resistance, and higher quality fruit and vegetable yields.
Potassium sulfate (SOP) is a naturally mined mineral produced through a solar evaporation process. This granular fertilizer delivers essential potassium along with 17% sulfur, helping plants develop robust roots, improve resilience, and enhance overall crop quality for home gardens, lawns, and landscapes.
- Nutrient balance for healthier growth: provides potassium and sulfur to support strong root systems, steady growth, and better fruit/vegetable quality.
- Natural, mineral-based source: SOP granules derived from a solar-evaporation mined mineral, offering a clean, mineral-focused fertilizer option.
- Easy to apply: granular form that fits into existing soil-feeding routines and can be integrated with irrigation schedules.
- Versatile use cases: ideal for home gardens, lawns, and landscape plantings where consistent potassium and sulfur support are beneficial.
From The Soil Makers, a brand grounded in soil science and practical growing experience, this SOP product helps you feed plants where it matters most—the root zone. Apply around established root zones and water in to begin delivering potassium and sulfur to support vigor and quality.
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Product features
Nearly every major plant physiological function depends on one or both of these nutrients and here, in the highly available water-soluble sulfate form, we offer a high performance solution grade powder that growers can apply with confidence. Designed for efficient delivery and immediate uptake, this 200 mesh powder can be used in reservoirs, fertigation, drip irrigation or spray applications.
We also a granular version for broadcasting
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