Vr international epsom salts for horticultural use is magnesium suphate heptahydrate - a compound of magnesium and sulphur and water - which is easily soluble in water. It is suitable for horticulture and also for aquarium use. Use it as essential plant fertilizer for horticulture and agriculture permitted in organic farming by apeda npop guidelines of government of india experts recommend epsom salt in the garden for a variety of uses, starting with your garden startup and including peppers, tomatoes, fruit and roses. They say epsom salt can also help with house plants, as well as lawns, trees and shrubs. Studies show that magnesium and sulfur, two naturally occurring minerals that are major components of epsom salt, help plants grow greener with higher yields and more blooms. Magnesium creates an environment conducive to growth by helping seeds to germinate, increasing chlorophyll production and improving phosphorus and nitrogen uptake. Sulfur is also a key element in plant growth.