Sulfur is added to lower soil pH. This works best when the sulfur is tilled into the soil and the soil is moist, aerated and warm. Air and water along with naturally occurring soil bacteria break the sulfur down into sulfuric acid. The sulfuric acid component will increase your soil acidity.
• Used to reduce soil pH • Soil testing recommended • In general, use 8 oz per 100 sq ft • Also known as Flowers of Sulfur • Do not apply when temperature is above 90° F