Will Salt Kill Moss?

Mosses also thrive in shaded areas with compacted or acidic soils. They are intolerant of alkaline soils because they contain higher levels of salt. In most cases salt kills moss, with the exception of the Schistidium maritimum moss species, which thrives in salty coastal sea air.

Can you use table salt to kill moss?

Regular table salt has little to no effect on moss. Bleach is recommended to treat moss because it breaks down into salt crystals in the sun, and even that salt won't damage the moss. Only potassium salts kill moss.

What is the best way to kill moss?

You can mix either gentle dish soap or baking soda with lukewarm water to create an effective DIY herbicide that will kill moss. If you are using soap, mix 2-4 ounces with two gallons of water. For the baking soda method, mix 2 gallons of water with a small box of baking soda, the sort they sell for fridge deodorizing.