How to remove moss from a brick wall

Written by claudia henning
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How to remove moss from a brick wall
Out-of-control moss growth quickly expands from the lawn to structures. (Jupiterimages/ Images)

Areas in your yard that are heavily shaded and moist are prone to a moss invasion. If left to grow unchecked, the moss will eventually choke out the grass completely and begin growing on structures. Moss seems to have an affinity for brick walls, where it will eventually break down the mortar holding the bricks together. Therefore, it's imperative to remove moss from brick walls as quickly as possible.

Skill level:

Things you need

  • Liquid zinc or magnesium silicofluoride
  • Garden sprayer
  • Garden gloves
  • Garden hose
  • Mild dish soap
  • Bucket
  • Scrub brush
  • Rake

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  1. 1

    Don gloves and mix a 1:40 ratio of zinc or magnesium silicofluoride with water in a garden sprayer. Pump up the sprayer by pressing down on the pump nozzle numerous times.

  2. 2

    Spray the entire brick wall and grass bordering next to it. Give the moss a couple of days to start drying up.

  3. 3

    Add 1 cup of mild dish soap with 5 gallons of water in a bucket. Use a stiff cleaning brush to scrub the dead and dying moss plants off the bricks.

  4. 4

    Rinse the brick wall with the garden hose. Use a rake to scoop the loosened chunks of moss and move them away from the wall.

Tips and warnings

  • Have the pH of your lawn tested if you have an increasing problem with moss. Limit shade and moisture on the lawn, and the moss should go away on its own.
  • Follow instructions exactly for the chemicals. Both are available at most home improvement centres.

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