Southern Ag Aluminum Sulfate (5 lbs) is a granular soil amendment used to lower soil pH and correct high alkalinity. Ideal for acid-loving plants like blueberries, azaleas, hydrangeas, and camellias, it promotes healthier growth and turns hydrangea blooms blue. Apply by hand or spreader, typically 1 lb per 3 ft of shrub height or 5 lbs per 100 sq. ft..
