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How to use Epsom salts on your lawn

Updated November 21, 2016

When spring rolls around, lawn enthusiasts rush to apply seed, fertiliser and weed killer, anxiously waiting for their grass to turn a lush green. Common Epsom salts provide an easy, inexpensive method to green the lawn. Usually used to soak achy feet, Epsom salt is not really a salt, but a mix of magnesium and sulphur. Both ingredients benefit a lawn by increasing the production of chlorophyll, promoting seed germination, and aiding the components of fertiliser.

Mix 240 g (1 cup) of Epsom salts with 237 ml (1 cup) of ammonia. Add water until the mixture equals 1 litre (1 quart) of fluid, and place the solution in a sprayer. Attach the sprayer to a hose and spray the mixture on your lawn, covering up to 232 square metres (2,500 square feet).

Combine 1.36 (3 lb) of Epsom salts with one bag of lawn fertiliser. Set your lawn spreader on medium and apply half of this mixture to the lawn.

Stir 125 g (1 lb) of icing sugar and 1.8 kg (4 lb) of Epsom salts into the lawn fertiliser using a large spoon or a gloved hand. Using your spreader, apply the mixture onto the lawn at a medium setting.

Blend 240 g (1 cup) Epsom salt, 237 ml (1 cup) liquid soap, 237 ml (1 cup) ammonia, two cans of beer and 237 ml (1 cup) Listerine mouthwash. Add enough water to make 4.5 litres (1 gallon) of fluid and apply to 232 square metres (2,500 square feet) of lawn using a sprayer attachment on a hose.

Tip

Apply one of the fertiliser mixtures every two weeks as needed to acquire and maintain a green lawn. Plants create sugar during photosynthesis; the addition of icing sugar aids in speeding up the process. Epsom salts are non-toxic and safe to children and animals in this application.

Warning

Epsom salts will clump together in areas of high humidity. Store in a cool, dark place.

Things You'll Need

  • 1.36 to 1.8 kg (3 to 4 lb) Epsom salts for every 1,250 square metres (1,250 square yards) of lawn to cover
  • Lawn fertiliser spreader
  • Water
  • Bag of lawn fertiliser -- 20-5-10 slow release dry lawn food, enough to cover 232 square metres (2,500 square feet)
  • Ammonia
  • 454 g (1 lb) bag of icing sugar
  • 2 cans of beer
  • Listerine mouthwash
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About the Author

Lori Lapierre holds a Bachelor of Arts and Science in public relations/communications. For 17 years, she worked for a Fortune 500 company before purchasing a business and starting a family. She is a regular freelancer for "Living Light News," an award-winning national publication. Her past writing experience includes school news reporting, church drama, in-house business articles and a self-published mystery, "Duty Free Murder."