What Size Tree Collar Do I Need?

This blog post will help you understand the different types of tree collars available and what size tree collar you need for your Christmas tree.

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A tree collar is a large, cylindrical piece of material that is placed around the base of a tree. The diameter of the tree collar should be slightly larger than the diameter of the tree trunk, and the height should be tall enough to completely cover the root flare.

There are several reasons why you might want to use a tree collar. Tree collars can protect the bark of young trees from damage caused by lawn mowers and string trimmers. Tree collars can also help to prevent girdling roots, which can strangle and kill a tree. Girdling roots typically occur when a tree is planted too deeply, so thetree collar helps to keep the roots exposed to air and prevent them from suffocating.

When choosing a tree collar, it is important to select one that is made from a durable material that will not rot or decay. Tree collars are typically made from plastic, metal, or rubber. They should also be easy to remove so that you can inspect the roots of your tree on a regular basis.

Tree Size

The size of your tree will obviously play a big role in determining the size of the tree collar you need. A small tree will obviously need a smaller collar than a large tree. But how do you determine the size of your tree?

Determining the size of your tree

The first step in choosing the right size tree collar is to determine the trunk circumference of your tree. This measurement should be taken at breast height, or 4.5 feet from the ground. Once you have this number, simply match it to the sizing chart below to find the perfect fit!

Tree Size (circumference in inches)
X-Small: Up to 8”
Small: 8” – 16”
Medium: 16” – 24”
Large: 24” – 36”
X-Large: 36” and up

The different tree collar sizes

A tree collar is a must-have item for any gardener, and the size you need will depend on the size of your tree. Here are the different sizes available:

-Small: 6-8 inches in diameter, fits most potted trees
-Medium: 10-12 inches in diameter, fits most patio and deck trees
-Large: 14-16 inches in diameter, fits most standard trees
-X-Large: 18-20 inches in diameter, fits most large trees

The Benefits of a Tree Collar

A tree collar is a great way to add some extra protection to your tree. It can help to prevent girdling, bark damage, and insect infestations. Tree collars can also help to increase moisture retention in the tree’s root system. They come in a variety of sizes, so it’s important to choose the right size for your tree.


A tree collar is an attractive addition to any tree, whether it’s in your front yard or backyard. Tree collars come in a variety of colors, sizes, and materials, so you can find one that fits your tree’s aesthetic. From bark-colored collars made of recycled wood chips to bright metal collars that add a pop of color to your green space, there’s a tree collar for everyone.


A tree collar is a must-have item for any gardener or landscaper, as it offers vital protection to the trunk of a tree. By wrapping the trunk in a collar, you can prevent damage from lawn mowers, string trimmers, and other garden tools. You can also use a tree collar to protect young trees from being gnawed on by rabbits and other small animals.

How to Choose the Right Size Tree Collar

A tree collar is an important part of any Christmas tree, and it is essential to choose the right size tree collar. The tree collar should be snug around the base of the tree, but it should not be so tight that it inhibits the tree’s ability to take in water. The tree collar should also be made of a material that will not scratch or damage the tree.

Consider the size of your tree

Choosing the right size tree collar is important for both the look of your tree and the health of your tree. If the tree collar is too small, it will constrict the tree and could cause damage. If the tree collar is too big, it will be loose and may not provide the support your tree needs.

To find the right size tree collar, you will need to measure the trunk of your tree. To do this, wrap a measuring tape around the trunk of your tree at chest height. Make sure to measure in a few different places to get an accurate measurement.

Once you have the measurement of your tree trunk, refer to the chart below to find the appropriate size tree collar.

Tree Trunk Diameter (in inches)
Tree Collar Diameter (in inches)

Consider the type of tree

One important factor to consider when choosing a tree collar is the type of tree you have. If you have a small, delicate tree, you’ll want to make sure you choose a collar that is soft and won’t damage the bark. On the other hand, if you have a large, tough tree, you can afford to go with a sturdier option.


While there are many factors to consider when choosing a tree collar, size is certainly one of the most important. By taking the time to measure your tree and select a collar that is appropriately sized, you can help ensure that your tree stays healthy and looks its best for years to come.