The Magnesium Sulfate Epsom Salts is a water-soluble fertilizer and soil amendment formulated to correct magnesium and sulfur deficiencies. Its high-purity magnesium boosts chlorophyll production and photosynthesis, while sulfur supports protein synthesis and plant metabolism. Ideal for vegetables, fruit and nut trees, ornamentals, and turf, this 50 lb bag provides a fast-acting solution for healthier and more productive plants.