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How to kill moss with bicarbonate of soda

Updated February 21, 2017

Although some people believe that moss growing on a lawn kills healthy grass, Washington State University Extension advises that it is, instead, an effect of turf failure. Bare patches in your lawn due to drought, too much shade, diseases and an array of other factors, provide ideal areas for moss to grow. To regain control of your lawn and successfully plant new grass, you must first rid the area of mossy patches. Bicarbonate of soda, also called baking soda, is a relatively safe herbicidal treatment that can help you kill moss in your yard.

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  1. Mix 354ml. bicarbonate of soda with 2 gallons of water in a garden sprayer.

  2. Spray mossy areas thoroughly with the baking soda solution, preferably on a warm, sunny day.

  3. Evaluate the mossy area in a few days, and if the moss is still alive, reapply baking soda and water to the area.

  4. Warning

    Moss will return if you do not remove the causative factors, like heavy shade and excessive moisture.

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Things You'll Need

  • 340gr. bicarbonate of soda
  • Garden sprayer

About the Author

Michelle Skidgel

Michelle Skidgel has worked as a writer and editor since 2001. She earned her Bachelor of Arts degree in English at Oklahoma State University and is currently raising and homeschooling five children with her husband. Her articles for various websites specialize in parenting, green living, gardening, cooking and frugal living.

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