
Finding mushrooms or fungi growing on your tree can be a surprising discovery. While some fungi are harmless, others could indicate serious underlying health issues, such as rot, decay, or stress. If you're a homeowner or property manager in Calgary, it’s important to understand what these growths mean for your tree’s health and safety—and when to call in a professional arborist.
Why Do Fungi Grow on Trees?
Fungi thrive in moist, decaying environments. When you see mushrooms or fungi on a tree, it usually means that some part of the tree is decomposing. Common reasons include:
Root Rot:Â Excess moisture or poor drainage can cause roots to decay, inviting fungal growth.
Internal Decay:Â Fungi can colonize inside the tree, feeding on dead or dying wood.
Tree Stress:Â Injuries, poor soil conditions, or nutrient deficiencies can weaken trees, making them susceptible to fungi.
Old Age:Â As trees age, they naturally become more prone to decay and fungal colonization.
How to Identify Harmful vs. Harmless Fungi
Not all fungi spell doom for your tree. Here’s how to identify whether the fungi you see might indicate a problem:
Harmless Fungi: Lichens and mosses are common in Calgary. These aren’t harmful to trees and often grow on the surface of the bark.
Harmful Fungi:Â Bracket fungi, conks, or large clusters of mushrooms at the base of the tree often indicate internal decay or root rot.
Pro Tip: Take clear photos of the fungi and use an identification app or consult with an ISA-certified arborist to understand what you’re dealing with.
Assessing Your Tree’s Health
Beyond the fungi itself, look for additional signs that your tree may be in trouble:
Bark Issues:Â Peeling or cracked bark can be a sign of internal decay.
Structural Problems:Â Hollow areas, soft wood, or cracks in the trunk are red flags.
Branch Health:Â Dead or dying branches and sparse leaf growth indicate stress.
Root Zone Concerns:Â Mushrooms growing around the base of the tree may signal root issues.
What to Do if You Find Fungi on Your Tree
If you suspect the fungi might be a sign of trouble, follow these steps:
Document the Fungi:Â Take photos and note when and where the fungi appeared.
Inspect the Tree:Â Look for signs of decay, such as hollow areas or dead branches.
Contact an Arborist:Â An expert can assess the tree's health and structural integrity.
Determine the Best Course of Action:Â Depending on the diagnosis, treatment may include:
Pruning:Â Removing affected branches to contain the issue.
Soil Improvement:Â Enhancing soil drainage and nutrition.
Tree Removal:Â If the tree is beyond saving, safe removal may be necessary.
How Evergreen LTD Can Help
Dealing with potential tree decay requires professional expertise. At Evergreen LTD, our ISA-certified arborists offer:
Comprehensive Tree Inspections: We identify fungi and assess your tree’s health.
Expert Treatment Plans:Â From pruning to soil management, we provide targeted solutions.
Safe Tree Removal:Â If needed, our team handles dangerous trees safely and efficiently.
Preventing Future Fungal Issues
To keep your trees healthy and fungus-free, follow these maintenance tips:
Water Properly:Â Avoid overwatering and ensure good soil drainage.
Mulch Correctly:Â A layer of mulch helps maintain soil moisture without overwatering.
Avoid Tree Injuries:Â Be cautious during lawn maintenance and landscaping.
Promote Healthy Soil:Â Add nutrients as needed and maintain good aeration.
Act Quickly to Protect Your Trees
If you spot fungi on your tree, don’t wait. Contact Evergreen LTD today for a professional assessment and ensure your property remains safe and beautiful.