In its elemental form Sulfur is primarily used to lower soil pH (make it more acidic), which is essential for acid-loving plants such as blueberries, azeleas, rhododendrons and more. 

Sulfur is an important micro nutrient in the formation of plant protein and is essential in the plants ability to uptake nitrogen.

Balanced levels of Sulfur create better enzyme complex systems and improved chlorophyll supply, resulting in healthier and more robust plants.