Espoma Organic Soil Acidifier lowers soil pH, turns hydrangeas blue and helps acid loving plants like blueberries thrive. Safer than aluminum sulfate, Espoma Soil Acidifier contains minerals that can be used to correct the problem of alkaline soil, promoting dark green growth and blue flowers in a long lasting formula that won’t burn. Soil acidification is used primarily to adjust the pH of alkaline soils for acid loving plants. It should be used alongside a complete fertilizer to ensure balanced availability of other vital nutrients.

Guaranteed analysis: 30% sulfur.

Derived from: elemental sulfur and gypsum

Made in the USA with solar power by Espoma Organic®. CDFA registered organic input material. USDA certified biobased product.