Gardening with Epsom Salt

Billie Nicholson

      epsom saltDid your grand parents use Epsom salt for something more than a hot tub bath after a hard day’s work? In addition to human health and wellness, it can help garden plants thrive, too. Epsom salt, Magnesium Sulfate, gets it’s name from the town of Epsom, England, where it was first distilled from water in the late 1500’s. It works to correct a magnesium or sulfur deficiency in the soil as an “organic fertilizer.”

Magnesium is an essential element in the chlorophyll molecule that allows plants to be able to convert light into energy. Photosynthesis is the chemical process that makes this conversion of light into energy-rich glucose molecules using water and carbon dioxide. It is the basis for life.1  Magnesium aids in nitrogen and phosphorus absorption and helps seeds germinate. Sulfur is an ingredient in two of the amino acids, methionine and cysteine, necessary to synthesize proteins. It also aids in other nutrient absorption.  The chemical compound, magnesium sulfate, is a highly soluble soil amendment, which means it can be absorbed by plants through their leaves as well as through their roots. It is also pH neutral, so it will not alter the soil pH. It promotes growth, color and overall plant health.2

Before you plant, add one cup of Epsom salt to every 100 square feet of soil. Mix it in thoroughly. If you have already planted, lightly sprinkle it over the newly planted area and water in with a hose sprinkler. Once plants are established, make a liquid fertilizer mixture of one tablespoon Epsom Salt to each gallon of water and apply four times during the season.3 Tomatoes and peppers are prone to magnesium deficiency. Add a tablespoon or two per hole before planting seeds or transplants and supplement with the liquid as they grow and develop fruit.

Epsom salt can revitalize your garden. It does not cause a chemical build up in the soil or harm plants when used.  Many gardeners credit their garden success to Epsom salt applications.




Additional Articles in the April 2014 Issue:


Billie Nicholson, Editor
April 2014