Espoma Organic Soil Acidifier contains elemental sulfur & 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. And because it’s made in our state-of-the-art solar powered manufacturing facility, consistency and quality are guaranteed.

• Turns Hydrangeas Blue
• Lowers pH of Soils
• Great for Blueberries & Other Berry Plants
• Approved for Organic Gardening
• Safe for People, Pets & Planet

Click here for our Guides to Hydrangeas & Berries

Apply in Spring and every 60 days until desired pH is achieved

We recommend wearing gardening gloves when feeding your plants

• Hydrangeas & Blueberries: Apply in the spring to lower soil pH.
  New Plantings: 1-1/4 cups per plant.
  Established Plants: 2-1/2 cups per plant
  Spread evenly around the plant out to the drip line and water well. Repeat in 60 day intervals until desired pH or bloom color is achieved.
• Potted Plants: One tbsp. for each 4˝ of pot diameter.
• Broadcast Rate:
  Apply 12 lbs. per 100 sq. ft. for each one point reduction in soil pH desired. For heavy clay soils increase rate to 15 lbs. Gradual reduction in soil pH is preferred as dramatic reduction can result in stress.
• As a Fertilizer: Apply 1/2 cup per 100 square feet (1 tablespoon per plant) around the root zone

*Safer than Aluminum Sulfate due to potential toxic levels of Aluminum with continued use of Aluminum Sulfate.

How to Apply

Spread evenly around the plant out to the drip line and water well. Repeat in 60 day intervals until desired pH or bloom color is achieved.