Why Is The Bark Peeling Off My Dogwood Tree

The bark peeling off your dogwood tree is usually a sign of stress, disease, or environmental damage, but it’s not always a death sentence.
 
When you first notice bark peeling off your dogwood tree, it’s easy to panic, but understanding the cause is the first step to saving your tree.
 
This issue can range from harmless natural shedding to a serious fungal infection, so let’s dig into the details.
 
In this post, we’ll explore why the bark is peeling off your dogwood tree, how to diagnose the problem, and what you can do to help your tree recover.
 
Let’s get to the root of this bark issue together.
 

Why Is the Bark Peeling Off My Dogwood Tree? Common Causes

The bark peeling off your dogwood tree can happen for several reasons, and identifying the culprit is key.
 
Here are the most common reasons you’re seeing peeling bark on your dogwood.
 

1. Dogwood Anthracnose Disease

One of the most serious reasons for bark peeling off your dogwood tree is a fungal disease called dogwood anthracnose.
 
This disease attacks the leaves first, causing purple-bordered spots, and then spreads to the twigs and branches.
 
As the infection progresses, it can cause cankers, which are sunken, dead areas on the bark.
 
When these cankers expand, you’ll see the bark peeling off your dogwood tree in strips, revealing the wood underneath.
 
If you notice peeling bark accompanied by dying branches and leaf spots, anthracnose is likely the reason your bark is peeling off your dogwood tree.
 

2. Environmental Stress and Sunscald

Sometimes the bark peeling off your dogwood tree is simply a reaction to harsh weather conditions.
 
Sunscald happens during winter when warm afternoon sun heats the bark, then temperatures drop rapidly at night.
 
This freeze-thaw cycle kills the inner bark tissue, causing it to crack and eventually peel away from the trunk.
 
You’ll often see this on the southwest side of the tree, where the sun hits hardest.
 
If your dogwood is young or recently planted, it’s more vulnerable to this type of bark peeling off your dogwood tree.
 

3. Physical Damage from Lawn Equipment

A very common and preventable cause of bark peeling off your dogwood tree is physical injury.
 
String trimmers, lawn mowers, and even garden tools can accidentally gouge the bark near the base of the trunk.
 
These wounds don’t heal like skin wounds do, and the damaged bark will start to peel away over time.
 
If the peeling bark is mainly at the bottom of the tree, think about whether your mower or trimmer has been getting too close.
 
This kind of bark peeling off your dogwood tree is a direct invitation for pests and diseases to enter.
 

4. Borers and Insect Infestations

Insects like the dogwood borer can also cause bark peeling off your dogwood tree.
 
These pests burrow into the trunk, creating tunnels under the bark.
 
As they feed and grow, they disrupt the flow of water and nutrients, which causes the bark to die and peel off.
 
Look for small holes, sawdust-like frass, or oozing sap near the peeling areas.
 
If you spot these signs, insects are likely the reason for the bark peeling off your dogwood tree.
 

How to Diagnose the Bark Peeling Off Your Dogwood Tree

Before you take action, you need to figure out which cause matches your tree’s symptoms.
 
A quick inspection will help you understand why the bark is peeling off your dogwood tree.
 

Check the Location of the Peeling Bark

Start by looking at where the bark is peeling off your dogwood tree.
 
If the peeling is on the trunk’s south or west side, it’s likely sunscald or winter injury.
 
If it’s at the very base, physical damage from lawn equipment is the probable culprit.
 
If the peeling is scattered across branches and the trunk, it could be anthracnose or borers.
 
The location gives you a huge clue about why the bark is peeling off your dogwood tree.
 

Examine the Bark and Wood Underneath

Gently lift a small piece of the peeling bark to see what’s underneath.
 
Healthy wood should be greenish and firm, while diseased or dead wood will be brown, brittle, or discolored.
 
If you see white, fan-shaped fungal growth under the bark, that’s a sign of a serious decay issue.
 
If the wood looks dry and gray, it might just be natural shedding, which happens on older dogwoods.
 
This simple test can tell you if the bark peeling off your dogwood tree is a minor issue or a major one.
 

Look for Other Symptoms on Leaves and Branches

Don’t just look at the bark; check the entire tree for other signs of stress.
 
Are the leaves showing spots, wilting, or turning brown in summer?
 
Are any branches dying back from the tips?
 
Combining leaf symptoms with bark peeling off your dogwood tree will help you pinpoint the exact disease or pest.
 
For example, leaf spots plus peeling bark strongly suggest anthracnose.
 

What to Do About Bark Peeling Off Your Dogwood Tree

Once you know the cause, you can take the right steps to stop the bark from peeling further.
 
Here’s how to handle the bark peeling off your dogwood tree.
 

Prune Away Dead and Infected Branches

If you suspect anthracnose or borers, prune out all dead, dying, and infected branches immediately.
 
Make clean cuts at least 6 inches below the visible damage to ensure you remove all the infected tissue.
 
Disinfect your pruning shears between cuts with a 10% bleach solution to avoid spreading the disease.
 
Removing these branches reduces the stress on your tree and slows the progression of the bark peeling off your dogwood tree.
 

Treat the Tree with Fungicide or Insecticide

For fungal diseases like anthracnose, you can apply a copper-based fungicide in early spring as new leaves appear.
 
Repeat the application every 10 to 14 days during wet, cool weather to protect new growth.
 
For borers, you’ll need an insecticide containing permethrin or carbaryl, applied to the trunk in late spring and early summer.
 
Always follow the label instructions carefully, and consider consulting a local arborist for the best treatment plan.
 
These treatments can stop the cause of the bark peeling off your dogwood tree before it spreads.
 

Mulch and Water Properly

A stressed dogwood is more susceptible to bark peeling, so give your tree the best care possible.
 
Apply a 2- to 3-inch layer of organic mulch around the base, keeping it a few inches away from the trunk.
 
Mulch helps retain soil moisture and regulates soil temperature, which reduces stress.
 
Water your dogwood deeply once a week during dry spells, especially in the first few years after planting.
 
A healthy, hydrated tree is much better at resisting the causes of bark peeling off your dogwood tree.
 

Protect the Trunk from Future Damage

To prevent physical damage, add a protective tree guard or wrap around the lower trunk.
 
This barrier will shield the bark from lawn mowers and string trimmers.
 
For sunscald, you can wrap the trunk with a commercial tree wrap in late fall and remove it in early spring.
 
These simple protections can stop the bark peeling off your dogwood tree from happening again.
 

So, Why Is the Bark Peeling Off My Dogwood Tree?

The bark peeling off your dogwood tree is caused by one or more of these factors: anthracnose, sunscald, physical injury, or insect borers.
 
In many cases, early intervention can save your tree, but severe infections might require professional help.
 
Start by diagnosing the location and condition of the peeling bark, then prune, treat, and protect your tree accordingly.
 
If the entire trunk is peeling and the tree looks declining, call a certified arborist for a thorough evaluation.
 
Remember that some healthy dogwoods naturally shed a thin layer of bark as they grow, but that should be minimal.
 
So, the next time you ask why the bark is peeling off your dogwood tree, you’ll know exactly what to check and how to fix it.
 
Take a deep breath, grab your gloves, and give your dogwood the attention it needs to thrive again.