Espoma Organic Soil Acidifier is the finest, most effective way to lower soil pH naturally. Formulated from elemental sulfur and gypsum, it turns hydrangeas from pink to blue and helps acid-loving plants like blueberries, azaleas, and rhododendrons thrive.
Long-lasting and safer to handle than aluminum sulfate, it is approved for organic gardening and made in Espoma’s solar-powered facility with no sludges or fillers.
