Is green moss on trees harmful?

Homeowners commonly ask us whether green moss on trees is dangerous. While moss alone isn’t harmful, it can contribute to some tree health issues.

The Moss That Saved Portland

Lichen has a lot to tell you about your trees

Why Roof Moss is Bad and How to Get Rid of It

FS1205: Tree-Dwelling Lichens (Rutgers NJAES)

What's In My Tree? City of Palm Coast, Florida

Is Lichen On Trees Harmful? - Independent Tree

What Causes Moss to Grow on Trees?

Cracks in Pavement Inexpensive Tree Care

Lichen On Your Trees: Good or Bad? - LAM Tree Service - Evergreen, CO

How To Naturally Remove Moss From Trees

Bacteria living on old-growth trees may help forests grow