Espoma Organic Soil Acidifier contains elemental sulfur and gypsum to help lower soil pH and turn hydrangeas blue. It is long-lasting and much safer than other acidifiers like aluminum sulfate. Like all Espoma Organic products, no sludges or fillers are ever used. Made in our state-of-the-art solar-powered manufacturing facility, consistency and quality are guaranteed.

Key Benefits:

• Turns hydrangeas blue

• Lowers pH of soils

• Great for blueberries and other berry plants

• Approved for organic gardening

• Safe for people, pets, and planet