What about Epsom salt for my lawn?

The truth about Epsom salt is that as the article states it is a source of magnesium, a nutrient that is part of the structure of chlorophyll – the stuff that makes plants green and helps them make food via photosynthesis. So, I agree that Epsom salt could be a benefit to the lawn as a source of magnesium and also sulfur. I disagree, though, in that it is not the primary ingredient in most lawn fertilizers. The primary nutrient in lawn fertilizers is nitrogen. Epsom salt is more commonly used in small doses for ornamental plantings, not lawns. So, I conclude after reading the Epsom salt recommendation for lawns, “Really?”

Rebecca Finneran

Michigan State University Extension

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