What is the branch bark collar?
John Peck
Updated on April 04, 2026
The branch collar (left) is the swollen area at the base of the branch where it attaches to the trunk. It is formed by overlapping and defl ected branch and trunk wood. The bark ridge is a raised area of bark at the point where the branch attaches to the trunk. A properly pruned large branch oneyear later (right).
Why is the branch collar important?
The branch collar is comprised of interlocking layers of cells of the branch and the trunk, and it plays an important role in healing the wound left by the pruning cut, sealing it off to reduce decay and prevent the entry of disease pathogens.
What is a tree collar in pruning?
The collar is an important part of a tree’s anatomy, and is especially important for those pruning trees to understand it’s purpose. The collar is the folded bark tissue around the base of a branch.
What’s the difference between topping and pollarding?
The practice of pollarding trees is taken when the tree is dormant, usually in the winter or early spring. Topping a tree involves the practice of removing the whole top part of the tree.
What is the bark collar on a oak tree?
The branch collar is the swollen area at the base of the branch. The branch bark ridge is the dark, rough bark ridge that separates the branch from the main branch or trunk.
How do I control where branch Falls?
Trim Your Trees to Prevent Falling Branches
- Assess the situation. Do you have a clear view of the branches?
- Use hand pruners to trim the suckers.
- Find dead tree branches and figure out where to cut them.
- Cut off dead branches.
- Remove branches that overlap or rub together.
- Balance the tree.
How often should you Pollard?
How often you cut depends on the purpose you are pollarding.
- If you are pollarding to reduce the size of the tree or in order to maintain a landscaping design, pollard every two years.
- If you are pollarding to create a sustainable supply of firewood, undertake pollard tree pruning every five years.
What is the branch bark collar and why is it important?
The identification of the Branch Bark Collar is the most critical aspect of our pruning cuts. Where the branch meets the limb or trunk there is a swollen area at the base of the branch.
What is a tree branches collar?
Tree branches grow outward from the main trunk of the tree (as opposed to a fork in the stem). When a tree branches, it forms a branch collar and a branch bark ridge. These two features are very important when it comes time to prune. The branch collar is a distinctive bulge at the base of the branch, where it connects to the trunk.
What is a bark ridge on a tree?
The branch bark ridge is slightly raised bark between the branch and the trunk that extends in a line to each side of the trunk. When the branch collar is difficult to identify, the branch bark ridge can help us decide where to make our pruning cut.
What can cause damage to the branch collar?
Events such as storms or incorrect pruning activity can cause damage to the branch collar When the trunk collar is injured, the trunk xylem below it is rapidly infected and decays.