Hi-Yield Iron Sulfate 3.25lb Growlight Perfect to keep your seed

Perfect to keep your seed starts warm and give them the best start this season

Spray all plant surfaces including the under sides of leaves until completely wet

watertight base tray

Non-toxic to humans

Light Output: 1950 Lumens

Hi-Yield Iron Sulfate 3.25lb Growlight Perfect to keep your seedRecommended 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