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What to do with overgrown boxwoods starts with understanding you have several solid options to bring them back under control.
Overgrown boxwoods can look messy, block walkways, or crowd out other plants in your garden.
If you’ve been staring at a giant green blob and wondering what to do with overgrown boxwoods, you’re not alone.
The good news is boxwoods are very forgiving and respond well to the right care.
In this post, we’ll explore what to do with overgrown boxwoods, from heavy pruning to replacement, so you can restore shape and health to your shrubs.
Let’s dig into the best ways to handle your overgrown boxwoods.
What to Do With Overgrown Boxwoods: First Steps to Assess the Situation
Before you grab your pruners, take a good look at your overgrown boxwoods and figure out how severe the problem really is.
This first step in what to do with overgrown boxwoods helps you avoid making a mistake that could damage the shrub permanently.
1. Check the Age and Health of Your Overgrown Boxwoods
Older overgrown boxwoods may have thick, woody centers with few leaves inside the canopy.
If the shrub still has green leaves on the outer branches and some inner foliage, you can likely rejuvenate it with pruning.
Dead, brittle branches or large bare patches mean your overgrown boxwoods might need more drastic measures.
Healthy wood snaps when bent, while dead wood breaks easily without bending.
2. Decide Your Goal for Overgrown Boxwoods
What to do with overgrown boxwoods depends on what you want: a tidy formal hedge, a natural rounded shape, or maybe a complete removal.
If you want to keep the plant, plan to reduce its size gradually over two or three seasons.
If the shrub is too far gone, replacing it might be the better option for your landscape.
3. Gather the Right Tools for Overgrown Boxwoods
Sharp bypass pruners, loppers, and a pruning saw are essential for tackling overgrown boxwoods.
Dull tools can tear bark and invite disease into your precious shrubs.
Clean your blades with rubbing alcohol between cuts to prevent spreading any infections.
Gloves and safety glasses protect you from scratchy branches and flying debris.
What to Do With Overgrown Boxwoods: Pruning Techniques That Work
Now that you’ve assessed the situation, it’s time to take action on your overgrown boxwoods with proven pruning methods.
The key to what to do with overgrown boxwoods is pruning at the right time and in the right way.
1. Rejuvenation Pruning for Heavily Overgrown Boxwoods
If your overgrown boxwoods have become a tangled mess, rejuvenation pruning is your best bet for a fresh start.
In early spring, cut the entire shrub back to 6–12 inches above the ground.
This sounds harsh, but boxwoods have dormant buds near the base that will sprout new growth.
Your overgrown boxwoods will look like stumps for a season, but by the second year they’ll be bushy and compact again.
Only use this method on healthy, well-established plants because weak shrubs may not survive.
2. Gradual Reduction for Overgrown Boxwoods You Want to Keep Shaped
For less extreme cases of overgrown boxwoods, take a slower approach over two to three years.
Each spring, remove about one-third of the oldest, thickest stems at ground level.
This encourages new growth from the base while maintaining the outer shape you want.
Thin out crowded branches in the center to let light and air reach the inner leaves.
Your overgrown boxwoods will gradually shrink without looking like they’ve been scalped.
3. Selective Thinning for Overgrown Boxwoods With Good Structure
If your overgrown boxwoods are mostly healthy but just too wide or tall, selective thinning works well.
Identify the longest branches that extend beyond your desired shape and cut them back to a side branch or leaf node.
Avoid shearing boxwoods into tight balls, as this creates a dense outer shell that blocks light from reaching the interior.
That interior dieback is a common problem with overgrown boxwoods that have been sheared for years.
What to Do With Overgrown Boxwoods: Aftercare for Recovery
Once you’ve pruned your overgrown boxwoods, the work isn’t done — proper aftercare helps them bounce back strong.
Your response to what to do with overgrown boxwoods must include feeding and watering to support new growth.
1. Water Your Overgrown Boxwoods Deeply After Pruning
Pruned overgrown boxwoods need consistent moisture to push out new shoots.
Water deeply once a week during dry spells, especially in the first growing season after heavy pruning.
Mulch around the base with 2–3 inches of organic material to retain moisture and keep roots cool.
Keep mulch a few inches away from the trunk to prevent rot.
2. Fertilize Your Overgrown Boxwoods Lightly
Wait until you see new growth before feeding your pruned overgrown boxwoods.
Use a balanced, slow-release fertilizer formulated for shrubs, applied in early spring.
Avoid high-nitrogen fertilizers because they push soft, fast growth that attracts pests.
A light feeding is all your overgrown boxwoods need to recover without stressing them.
3. Watch for Pests and Disease on Overgrown Boxwoods
Stressed overgrown boxwoods are more vulnerable to boxwood leafminer, psyllid, and blight.
Inspect leaves regularly for yellowing, stippling, or spots.
Prune out any diseased branches promptly and dispose of them in the trash, not the compost.
Good air circulation from your pruning efforts will help prevent future problems.
What to Do With Overgrown Boxwoods: When Replacement Is the Answer
Sometimes what to do with overgrown boxwoods isn’t pruning — it’s replacing them entirely.
If your shrubs are more than 20 years old and have large dead zones inside, they may never look good again.
Severe infestations of boxwood blight or root rot also call for removal.
Dig out the old plants and amend the soil before planting new boxwoods or alternative shrubs.
Consider disease-resistant varieties like ‘Green Velvet’ or ‘Green Mountain’ for a fresh start.
Removing overgrown boxwoods gives you a blank canvas to redesign your garden.
So, What to Do With Overgrown Boxwoods?
What to do with overgrown boxwoods depends on their health, your patience, and your design goals.
Healthy overgrown boxwoods can be rejuvenated with heavy pruning or gradually reduced over a few seasons.
Unhealthy or severely misshapen overgrown boxwoods may need to be replaced for a better look.
After pruning, give your overgrown boxwoods water, light fertilizer, and watch for pests.
Hope this guide has helped you figure out what to do with overgrown boxwoods in your own yard.