Espoma Organic Soil Acidifier, 6 lb - Pack of 6

Espoma Organic Soil Acidifier combines elemental sulfur and gypsum to lower soil pH for blueberries, hydrangeas, azaleas, hollies and other acid-loving plants. It works gradually and is a safer alternative to aluminum sulfate for turning hydrangea blooms blue.

• Net weight: 6 lb bag
• Guaranteed analysis: Sulfur (S) 30% (18% free sulfur, 12% combined sulfur)
• Derived from: elemental sulfur and gypsum
• Rates: 1-1/4 cups per new planting, 2-1/2 cups per established plant; 1 tbsp per 4 in of pot diameter; broadcast 12 lb per 100 sq ft per one-point pH drop (15 lb for heavy clay)
• Apply in spring and every 60 days until target pH or bloom color is reached
• 1 lb = about 2 cups
• Approved for organic gardening
• Espoma item GSUL6; UPC 050197030069