October 14, 2026
Mushrooms can appear quickly in a Florida yard, especially after a stretch of warm, wet weather. When they show up around a mature tree, homeowners often wonder whether something is wrong.
In many cases, there is no reason for immediate concern. But where the mushrooms are growing can tell us something about whether the tree deserves a closer look.
Mushrooms Around a Tree Are Often Harmless
The mushroom you see above ground is the fruiting structure of a fungus. Much of the fungus itself may be growing out of sight in soil, wood, or other organic material.
Many fungi feed on dead material. Mushrooms in a Tampa yard may be growing from mulch, buried wood, an old stump, or roots left behind by a tree that was removed years ago. Some fungi even form beneficial relationships with the roots of living trees.
So, mushrooms growing in the lawn or mulch near a tree do not necessarily mean the tree itself is unhealthy.
Where Are the Mushrooms Growing?
This is one of the most useful things to look at.
Mushrooms scattered through the lawn or a landscape bed are different from fungal growth emerging directly from a tree. Check the trunk, the root flare where the trunk widens at ground level, exposed woody roots, and any cavities in the tree.
Mushrooms growing directly from these areas can be associated with decaying wood. Hard, shelf-like fungal growths known as conks can also be signs of wood decay.
Growth at the base of a tree deserves particular attention because the lower trunk and major roots are important to the tree's structural support.
Look at the Rest of the Tree
A mushroom is only one piece of information.
If fungal growth is accompanied by a thinning canopy, dead branches, cavities, damaged roots, or changes around the base of the tree, those additional signs can help build a clearer picture of its condition.
Location matters here too. A large tree growing near a Tampa home, driveway, street, or other frequently used area deserves additional attention when there are possible signs of root or trunk decay.
A Mushroom Is a Clue, Not the Answer
Even when a fungus is associated with decay, the mushroom alone cannot tell you how extensive that decay is or what it means for the tree's stability.
That requires looking at the tree as a whole, including its trunk, roots, canopy, surroundings, and any other signs of declining health or structural problems.
If mushrooms or conks are growing directly from your tree, repeatedly appearing around its base, or showing up along with other changes in the tree, it may be time for a professional evaluation.
Our ISA Certified Arborists evaluate trees throughout Tampa and the surrounding Central Florida area. We can inspect the tree, identify signs that may require attention, and help you understand the appropriate next step.
Call Mid-Florida Tree Service at (813) 588-0315 to schedule a professional tree evaluation.









