How To Reduce Height Of Arborvitae

To reduce the height of arborvitae, you need to prune them strategically over time.
 
Reducing the height of arborvitae is entirely possible with the right approach and patience.
 
Arborvitae height reduction works best when you focus on selective cuts rather than drastic chopping.
 
If you’ve been wondering how to reduce arborvitae height without killing the tree, this guide covers it.
 
In this post, we’ll explore safe and effective methods for reducing arborvitae height.
 
Let’s walk through the best ways to reduce the height of your arborvitae.
 

How to Reduce Height of Arborvitae

1. Prune the Central Leader

 
To reduce the height of arborvitae, cutting the central leader is a direct method.
 
The central leader is the main vertical stem that determines the tree’s height.
 
By shortening it, you can reduce arborvitae height quite noticeably.
 
But only cut back to a lateral branch that is at least one-third the diameter of the leader.
 
This ensures the new top will grow strong and keep the tree’s natural shape.
 
If you remove the leader without leaving a strong lateral, the tree may look odd.
 
Arborvitae height reduction through leader pruning is best done in late winter.
 

2. Shape the Foliage Laterally

 
Another way to reduce arborvitae height is by trimming the side branches.
 
When you reduce arborvitae height, focus on the upper portions of the tree.
 
Cut back the tips of branches to encourage denser growth and a shorter overall profile.
 
Always cut just above a leaf node or lateral branch to promote healthy regrowth.
 
This method helps you reduce arborvitae height gradually without creating bare spots.
 
Shaping the foliage also improves air circulation inside the tree.
 

3. Choose the Right Season

 
Timing is crucial when you want to reduce the height of arborvitae.
 
The best time for arborvitae height reduction is in late winter or early spring.
 
This allows the tree to recover before the growing season begins.
 
Avoid reducing height in late summer or fall, as new growth may not harden before frost.
 
Pruning in the correct season makes arborvitae height reduction much safer.
 
If you prune at the wrong time, the tree might struggle to heal.
 

Common Mistakes When Reducing Arborvitae Height

1. Cutting Into Old Wood

 
One mistake when you reduce arborvitae height is cutting into brown, leafless wood.
 
Arborvitae do not regrow from old wood, so any cut into dead branches leaves a bare spot.
 
To reduce arborvitae height safely, always cut into green, living foliage.
 
If you accidentally cut into old wood, that branch will never fill in again.
 
Arborvitae height reduction requires you to keep cuts within the green zone.
 

2. Topping the Tree

 
Topping is when you cut off the top of the arborvitae at a uniform height.
 
This can ruin the natural shape and lead to weak, bushy growth.
 
Proper arborvitae height reduction involves selective pruning, not hacking off the top.
 
Topped trees often develop multiple weak leaders that are prone to snow damage.
 
When reducing arborvitae height, never sever the main trunk at a single point.
 

3. Overpruning at Once

 
Reducing arborvitae height drastically in one season stresses the tree.
 
It’s better to reduce height gradually over several years.
 
Aim to remove no more than one-third of the total foliage per year.
 
If you take too much at once, the tree may struggle to photosynthesize.
 
Patience is key when you reduce arborvitae height for long-term health.
 

Alternative Ways to Manage Arborvitae Height

1. Plant a Dwarf Variety

 
If you’re tired of battling height, consider choosing a dwarf arborvitae from the start.
 
Dwarf varieties naturally stay small, so you won’t need to reduce arborvitae height often.
 
Examples include ‘Emerald Green’ or ‘Hetz Midget’ which stay compact.
 
This eliminates the need for regular arborvitae height reduction entirely.
 

2. Use Growth Regulators

 
Plant growth regulators can slow down arborvitae height increase.
 
These are applied as sprays and reduce internode length, keeping trees shorter.
 
This is a non-pruning method to reduce arborvitae height chemically.
 
However, it’s best for young trees and must be repeated annually.
 
Consult a professional before using regulators for arborvitae height reduction.
 

So, How to Reduce Height of Arborvitae?

 
To reduce the height of arborvitae, you need to prune carefully and patiently.
 
Reducing arborvitae height is possible through proper techniques like cutting the leader and shaping laterals.
 
Avoid common mistakes like topping or cutting into old wood.
 
With the right approach, you can reduce arborvitae height without harming the tree.
 
Whether you prune annually or choose a dwarf variety, managing arborvitae height is doable.
 
Hope this guide helps you keep your arborvitae at the perfect height for your landscape.