Epsom salt is not table salt, it is actually hydrated Magnesium Sulfate (10% magnesium and 13% sulphur) that offers an environmentally safe way to fertilize your garden. Magnesium helps plants during germination by strengthening the plant cell walls. It also assists in the creation of chlorophyll and helps plants absorb phosphorus and nitrogen. Remember for Spring ~ Add 2 tablespoons of Epsom salt to a gallon of water and spray your lawn . Epsom salt is loaded with magnesium!