Plant FertilizerI am an avid gardener, so any natural way I can make my harvest more plentiful is exciting to me. Recently, I found that Epsom salt makes a wonderful fertilizer, not only for grass but also for potted plants and veggies. I simply sprinkle a little salt around the base of each plant once a week and water, and my plants look amazing. To make your grass greener, mix one cup of salt for every gallon of water and use a sprayer to cover your lawn. Repeat this once every two weeks throughout the growing season.