How To Rejuvenate Arborvitae

You can rejuvenate arborvitae with the right pruning, watering, and care techniques.
 
If your arborvitae is looking thin, brown, or leggy, you might be wondering how to rejuvenate arborvitae without harming it.
 
Rejuvenating arborvitae is possible because these evergreens have a remarkable ability to push new growth from dormant buds on older wood.
 
The key to successfully rejuvenating arborvitae is timing, technique, and patience.
 
In this post, we’ll cover exactly how to rejuvenate arborvitae step by step, what mistakes to avoid, and how to keep your shrubs looking full and healthy for years.
 
Let’s dig in.
 

How to Rejuvenate Arborvitae With Pruning

Pruning is the most direct way to rejuvenate arborvitae, but it must be done carefully.
 
Arborvitae don’t sprout new growth from bare wood the way many deciduous shrubs do, so you need to know where to cut.
 
Here are the best practices for rejuvenating arborvitae through pruning.
 

1. Prune in Early Spring

The best time to rejuvenate arborvitae is in late winter or early spring before new growth emerges.
 
This gives the plant the entire growing season to recover and fill in.
 
Pruning in fall or summer can stress the shrub and reduce its chances of bouncing back.
 
When you prune early, you encourage dense, fresh growth that helps rejuvenate arborvitae effectively.
 

2. Cut Just Above a Live Branch or Bud

When you remove dead or damaged branches, always cut back to a point where you see green foliage or a live bud.
 
Leaving a bare stub with no green will not produce new growth, and that defeats the purpose of rejuvenating arborvitae.
 
Make clean cuts at a slight angle to shed water and prevent disease.
 

3. Don’t Cut Into the Brown Center

The interior of an arborvitae branch is brown and woody, and it will not regrow once exposed.
 
To successfully rejuvenate arborvitae, only trim the outer green portion of the branch.
 
If you cut too deep, you’ll create bare patches that may never fill in naturally.
 

4. Remove One-Third of the Oldest Branches

A gradual approach works best for severely overgrown arborvitae.
 
Each year, remove about one-third of the thickest, oldest stems at ground level.
 
This opens up the center to light and air while letting younger shoots take over.
 
Over three years, this method can completely rejuvenate arborvitae without shocking the plant.
 

How to Rejuvenate Arborvitae With Water and Soil Care

Sometimes pruning alone isn’t enough to rejuvenate arborvitae, especially if the plant is struggling due to poor soil or drought stress.
 
Addressing the root zone is just as important as the branches.
 

1. Water Deeply and Infrequently

Arborvitae prefer consistent moisture, but they hate soggy roots.
 
To rejuvenate arborvitae, water deeply once a week during dry spells, soaking the soil to a depth of 8–12 inches.
 
Shallow watering encourages shallow roots, which makes the plant more vulnerable to stress.
 

2. Apply a Layer of Mulch

Mulch is a game-changer when you’re trying to rejuvenate arborvitae.
 
Spread 2–3 inches of organic mulch around the base, keeping it a few inches away from the trunk.
 
Mulch keeps the soil cool, retains moisture, and prevents weeds from competing for nutrients.
 

3. Fertilize Lightly in Spring

A balanced, slow-release fertilizer can give your arborvitae the energy it needs to push new growth.
 
Use a formula like 10-10-10 and follow the label directions, but don’t overdo it.
 
Too much nitrogen can burn the roots and actually harm your efforts to rejuvenate arborvitae.
 

How to Rejuvenate Arborvitae After Winter Damage

Winter is tough on arborvitae, especially with snow, ice, and drying winds.
 
If your arborvitae looks brown or bent after winter, don’t give up.
 
You can still rejuvenate arborvitae that has suffered winter burn or snow load.
 

1. Wait Until Spring to Assess Damage

Brown foliage in late winter doesn’t always mean the branch is dead.
 
Wait until new growth appears in spring to see which parts are truly gone.
 
Then prune out only the dead branches, leaving the living parts to help rejuvenate arborvitae naturally.
 

2. Gently Brush Off Heavy Snow

If snow is bending the branches, use a broom to gently lift and brush it off.
 
Heavy weight can split trunks or break branches, making it harder to rejuvenate arborvitae later.
 
Do this before the snow freezes into ice.
 

3. Support Split Branches With Stakes

When a branch splits but is still attached, you can sometimes save it.
 
Wrap the split area with soft tree tape and stake the branch upright.
 
This gives the wound time to heal and helps the plant rejuvenate arborvitae form over the season.
 

So, How to Rejuvenate Arborvitae?

You can rejuvenate arborvitae by combining careful pruning, proper watering, and timely winter care.
 
Start by pruning in early spring, cutting only into green foliage, and removing old branches gradually.
 
Support the plant with deep watering, mulch, and light fertilizer to encourage new growth.
 
If winter caused damage, wait for spring to prune and use staking for split branches.
 
With patience and the right techniques, you can successfully rejuvenate arborvitae and restore its lush, full appearance.
 
Hope this guide has helped you understand exactly how to rejuvenate arborvitae so your shrubs can thrive again.