Jobe's® Organic Soil Acidifier

Get more and bigger blueberries! Leaves turning yellow on your blueberry bushes? It’s probably because the soil is too alkaline. Use this specially formulated acidifier to lower your soil pH and watch your blueberry plants (hydrangeas, too) thrive. Contains elemental sulfur and gypsum. Apply every 8 weeks, or as needed, to get soil acidity to the desired pH. Test soil pH before applying. OMRI-listed. Granular.