CONTAINS: Fertilizer grade Aluminum Sulfate, as Metallic 9.0%. Not for spray application. USE ON: Acid loving shrubs like rhododendrons, hydrangeas, blueberries, dogwoods, holly, gardenias, camellias, and azaleas. CORRECTS: Excess alkalinity in the soil. RATE: For large shrubs use 1 lb. per 3 ft. of height. For Trees, use 1 lb. per inch of trunk diameter. For small shrubs, use 5 lbs. per 100 sq. ft. APPLICATION: Broadcast evenly, wash off foliage and water.