Hi-Yeild Iron Sulfate 4 lb

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