Crown lifting a tree is the process of removing its lower branches to increase the crown base height. It is also referred to as canopy lifting. It is done on young and average aged trees to stop the lower branches from reaching a large diameter. Even more, it creates more room between the ground and its bottom branches.
Some of the lower branches removed – A partly crown lifted tree
Crown lifting is best done in winter when the tree is dormant because it is easier to evaluate the tree branches when they are bare. So, how do you crown lift a tree?
IN THIS ARTICLE
Crown Lifting Step by Step.
Step 1: Tree Assessment
Before you crown lift a tree, you must examine it from different angles, up close and from afar. By doing this, you can easily estimate the height required for the crown base.
Step 2: Take out the smaller bottom branches
You can start by cutting the underneath of the branch. Then cut it completely from the top. The cut should be somewhat oblique and well defined. When cutting these small lower branches, you must leave a few millimetres before the tree trunk. This is done to protect the main stem from diseases that can be spread from the cut.
Step 3: Cut large branches carefully
You need to be careful when taking out large branches. They should be cut out step by step. Doing otherwise could result in significant damage to the tree. It may affect the tree’s health and cause it to decay. Large branches should be cut in sections leaving a few millimetres before the main trunk.
Types of Natural Tree Crowns
Dominant Crown
This is a type of crown that grows above other surrounding plants. This means a tree with a dominant crown will absorb more sunlight than other plants. A great example of a tree with a dominant crown is the Red Oak.
Co-dominant Crowns
Trees with this crown are smaller than those with dominant crowns. They share sunlight and other resources with surrounding trees. Due to this, they do not reach their maximum size. An example is the Abies balsamea tree.
Intermediate Crowns
These are shorter than co-dominant tree crowns. Their leaves have a smaller surface area as well. They are similar to co-dominant trees in the sense that they absorb sunlight from above but not from the sides. Intermediate tree crowns are narrow and lopsided. A perfect example is the Japanese Stewartia.
Benefits of Crown Lifting
Prevents Obstruction
This is the most common reason for lifting a tree’s crown base height. It creates better access for cars and more visibility for drivers and passers-by. It also prevents obstruction of structures such as cable lines and fences.
Healthy Tree
Then crown lifting is done properly, air and light penetrate more easily. This results in a healthier tree.
Brighter Environment
Trees become thicker as they develop more branches. Reducing the lower branches of your tree will reduce its overall size and thickness. Therefore, tree crown lifting creates a brighter and cleaner look.
Aesthetics
Crown lifting a tree can make it more attractive. It will give your tree a more balanced look and make your garden much more appealing.
