After the solution has soaked in, use a soft-bristled brush to remove the moss from the surface. Rowan pointed out that ...

Patio black spots are those pesky types of lichen that burrow deep into surfaces, becoming a cleaner’s nightmare. More stubborn than either moss or algae ... shared an easy removal method ...

Both moss and lichens also do not have roots ... This is especially true if it's found on hard surfaces. Read how to remove algae from a fence for more advice.