08/27/2026
If you are spotting mushrooms growing at the base of your trees, it is time to pay close attention.
These fungi are not just growing on the bark—they are feeding on it. In the tree world, mushrooms at the base or on the trunk are often the fruiting bodies of root or heart rot. This means fungus is actively breaking down the wood from the inside out, which can severely compromise the structural integrity of your tree.
Because the decay happens internally, a tree can look perfectly healthy with lush green leaves on top, even while it is rotting at the core.
Check for other signs. Look for dead branches, peeling bark, or a sudden lean in the tree. Internal decay makes trees unstable and highly susceptible to falling during storms.
Keep your home and yard safe! Give us a call or send us a message today to schedule an inspection!
Mushrooms at the base of the tree trunk can indicate big problems. They can be the sign of armillaria root rot or other fungi which kill trees (See: armillaria mushroom close-up). Once you see the mushroom like that shown below the decay fungus has established itself inside the roots and trunk.
