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