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.