Use Soil Acidifier on all acid loving plants, trees and shrubs
- Turns hydrangeas blue
- Lowers the pH of soils for optimum growth of acid-loving plants
- Derived from Elemental Sulfur & Gypsum
- Great for blueberries
- Safer than Aluminum Sulfate
When to use:
Apply in Spring and every 60 days until desired pH is achieved
How much to use:
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.
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