The Elemental Sulfur 4 lb is a concentrated, natural soil amendment designed to lower high soil pH and supply sulfur, an essential plant nutrient. With 90% elemental sulfur content, this granular formula gradually acidifies alkaline soils, making nutrients more available to acid-loving crops and ornamentals. It’s ideal for use in both conventional and organic gardening, and can be blended into compost, garden beds, or potting mixes for long-lasting pH control.