Hi-Yield Iron Sulfate 3.25lb

Recommended for the prevention and correction of chlorosis (yellowing of plant leaves) caused by iron deficiency. Aids in creating an acid soil condition. 4lbs. covers 1,000 square feet. Application Rates: Trees: 1/2 lb. per inch of trunk. Apply around drip line. Shrubs: 1 lb. per 2 ft. of height. Caution: Will stain concrete and pavement! *formerly Copperas