Moss Always Grows On the North Side of Trees: I'm sure this might be accurate once in a while, but also remember that a broken clock is still right twice a day. Depending on the climate, latitude, moss species, and a host of other factors, moss can grow just about anywhere it likes. In fact, more often I find moss growing on the south side of the trees where I live in the the mid-Atlantic region. It's sunny on the south side of the trees and our local moss species prefer more light, especially in thicker forests. But in that same patch of woods, I also find plenty of cases where the moss is on the east, north, and west sides of trees. So if I believed that tree moss was telling me which way to go, I'd end up traveling in circles.