https://www.acehardware.com/departments/lawn-and-garden/lawn-care/soil-conditioners/7045776
Hi-Yield Iron Plus Soil Acidifier Plus Iron 20 lb Mfr# 34260 - Ace Hardware
Contains a pelletized material that will turn yellow plants and grasses green fast. Will not burn when used as directed.Find the SL ACDFR PLS IRN 20# at Ace.
iron plus