It is possible to keep a catalpa tree small through a pruning technique called pollarding. Pollarding involves cutting back the main branches of a tree to a specific point, usually near the trunk or main stem, in order to control its size and shape. This can be a useful method for keeping a catalpa tree at a manageable size, especially when it is planted near a home or in a small garden.
When pollarding a catalpa tree, it is important to consider the specific needs and growth habits of the tree. Catalpas are known for their fast growth and large size, so regular maintenance through pruning is necessary to keep them small. By pollarding the tree, you can not only control its size but also encourage it to develop a more compact and dense form.
To pollard a catalpa tree, start by selecting the main branches that you want to keep. Ideally, these branches should be evenly spaced around the trunk and have a strong and healthy structure. Cut back these branches to a point close to the trunk, leaving stubs that will eventually develop into new growth. It is recommended to prune the branches in late winter or early spring before the tree starts to actively grow.
After pollarding, the tree will respond by producing new shoots from the cut branches. These shoots are called epicormic growth and will need to be pruned back annually or every other year to maintain the desired size and shape of the tree. It is important to note that if the epicormic growth is not pruned regularly, the tree may become overgrown and lose its compact form.
In addition to controlling the size of the catalpa tree, pollarding can also have other benefits. Catalpas are known for their large leaves, which can provide shade in the summer. By keeping the tree small through pollarding, you can ensure that it doesn’t overshadow other plants or structures in your garden. Furthermore, catalpas have a unique defense mechanism against insects – they produce compounds that act as natural insect repellents. By having a pollarded catalpa near your home, you can potentially enjoy the added benefit of having a natural insect repellent.
Keeping a catalpa tree small is possible through the pruning technique of pollarding. By cutting back the main branches and regularly pruning the epicormic growth, you can maintain a compact and manageable size for the tree. This method not only controls the tree’s size but also allows it to serve as a natural insect repellent. However, it is important to keep in mind that pollarding requires regular maintenance and pruning to keep the tree in its desired form.
