Hi-Yield (34257) Iron Plus Soil Acidifier 11-0-0 (3.25 lbs.)

This Iron Supplement and pH Acidifier is designed to turn yellowing plants and grass green. Only for use on Alkaline and Calcareous soil. Incorrect use could result in burning. This Iron and pH supplement can be used on lawns, flowers, trees, shrubs and citrus. 11-0-0 fertilizer mix contains 11% Nitrogen, 13% Sulfur and 16% Iron. Application varies by plant type and size. See label for application instruction.