How do I remove green moss from a north facing sidewalk.

Sprinkle roofs, decks, furniture, and walkways generously with baking soda. Next, even out the coverage with a broom or brush. Let it stand for a few days, or until moss turns golden and starts to flake away. Scrub or scrape off moss and rinse away excess soda and you’re done until next year. This is effective with getting rid of the mold/pollen buildup as well.

Pressure washing might remove.

Have you tried bleach? Maybe followed by boiling water a few days later.

Hi Mary. If you have access to a pressure washer I would do that. Otherwise mix a bucket of water with bleach 50/50. Pour a little on the concrete and use a push broom to scrub the concrete. Good Luck!

power wash all the way

Hi Mary, Here is a good product, you can research others, Lowe’s and Home Depot carry some other brands also! Good luck! http://landing.wetandforget.com/easily-remove-moss-from

wet and forget safe for all surfaces not a pressure washer