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• Biodegradable packaging
• Precise nutrient formulation to reduce runoff
• Support for eco-friendly farming methods

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Ammonium sulfate is a dual-purpose inorganic fertilizer that provides plants with two essential nutrients: nitrogen (21%) and sulfur (24%). As a fast-acting nitrogen fertilizer, ammonium sulfate delivers nitrogen in the ammonium form (NH4+), which is readily absorbed by plant roots and less prone to leaching than nitrate forms. The sulfur component, in the form of sulfate (SO4), helps plants produce amino acids, proteins, and vitamins while supporting chlorophyll formation. When applied to soil, ammonium sulfate dissolves quickly, making nutrients immediately available for plant uptake, promoting lush green growth, improved vigor, and enhanced yield for various crops, lawns, and garden plants.

Yes, ammonium sulfate effectively lowers soil pH, making it an excellent choice for acidifying alkaline soils. When applied, ammonium sulfate typically reduces soil pH by 0.5 to 1.0 units, depending on soil type, existing pH level, and application rate. This acidifying effect occurs because when soil bacteria convert the ammonium (NH4+) to nitrate (NO3-), hydrogen ions (H+) are released, increasing soil acidity. For gardeners dealing with alkaline soils (pH above 7.0), regular applications of ammonium sulfate can gradually bring soil pH into the ideal range (6.0-6.5) for most plants. This makes ammonium sulfate particularly valuable for regions with naturally alkaline soils or water supplies with high pH levels.

Ammonium sulfate is ideal for blueberries, azaleas, rhododendrons, camellias, and other acid-loving plants that thrive in soil with pH levels between 4.5 and 5.5. These plants require acidic soil conditions to properly absorb iron and other micronutrients, and ammonium sulfate delivers both the acidity and nitrogen these plants crave. For established blueberry plants, apply 1/4 to 1/2 cup of ammonium sulfate per bush in early spring, and again after harvest. For rhododendrons and azaleas, use 2 tablespoons per foot of plant height, applied in early spring. Regular soil testing is recommended to monitor pH levels and prevent over-acidification, especially in container gardens or raised beds where pH can change more rapidly.