How Do I Kill Moss Growing on My Brick Sidewalk?


Moss can grow rapidly in between sidewalk brick. It tends to grow in clumps, particularly in areas of shade and moisture. Moss can be very stubborn, and to kill it in brick you need to be consistent and use effective methods. Fortunately, there are some household items that can be used to eradicate moss in brick sidewalks.

Bleach It

  • Use household bleach for getting rid of moss. Be sure to wear protective gloves and glasses when using bleach. Mix water and bleach together in equal amounts. Use a special spray bottle that is not used for anything else and make sure to label it and remember the mix is only effective for 24 hours. Spray the entire moss-covered area. It will begin to turn white from the bleach. Hose down the area with a regular garden hose. An alternative to bleach is baking soda. Sprinkle baking soda on the moss and allow it to sit for one full day. Simply sweep up whatever baking soda powder is still remaining on the ground. Those with sensitivity to bleach should choose this method.

Power Wash It

  • Power washing can also be very effective for removing moss from brick sidewalks. It may not be cost effective to purchase a power washer just for removing moss, however. Consider renting one from a garden center or hiring a landscaper to do the work. When using a power washer on brick, be sure to set it below 2500 per square inch of water pressure to avoid damaging the sidewalk. Additionally, the power washer should be held at least a foot away from the brick.

Boil It

  • Th old-fashioned method of using boiling water for removing moss has not only been shown to be effective, it's also safe for the environment. Use caution, and pour the boiling water directly onto the moss. The next step is to scrub the moss with a brush that has stiff bristles. After that, simply sweep the debris away and hose down the area.

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