What to do about ugly green algae on siding


When you’re spending time outdoors in the warm, sunny weather this spring you’ll probably notice some ugly green algae has appeared on your garden shed siding. After a wet winter algae often grows on the north facing side of walls.  If you have decided that removing this algae will be your first spring cleanup chore, a spray bottle and some bleach should do the trick.

For a nice clean shed just do the following: fill a spray bottle with half bleach and half water. It should be strong enough to cut off anything. Have a bucket of rinse water, a sponge and some dry rags. Spray the algae generously and let it set for a few moments. When you see streams of green running from the area you just sprayed, wash it off with clean rinse water and a sponge then dry the area with the rags. If the algae is thick, it might leave a greenish stain, just repeat the process and rinse it off again.