How To Get Rid Of Black Walnuts

Getting rid of black walnuts isn’t easy, but it’s absolutely doable with the right strategy.
 
These trees are notorious for being stubborn, mostly because they release a chemical called juglone that poisons the soil around them.
 
So, if you’ve been wondering how to get rid of black walnuts for good, you’re in the right place.
 
In this post, we’ll walk through the most effective methods for how to get rid of black walnuts, whether you’re dealing with the trees themselves, the nuts, or the persistent seedlings.
 
We’ll also cover why black walnuts are so hard to remove and what you can do to stop them from coming back.
 
Let’s dig in.
 

Why Getting Rid of Black Walnuts Is So Tough

Getting rid of black walnuts is tough because these trees have a few built-in survival tricks.
 
Here’s why they’re such a challenge to remove.
 

1. They Produce Juglone

Black walnuts release juglone, a natural chemical that’s toxic to many plants.
 
This means the area around a black walnut tree is often barren of other vegetation.
 
Juglone gives black walnuts a competitive edge, which makes getting rid of black walnuts feel like an uphill battle.
 

2. Deep and Stubborn Root Systems

Black walnut trees develop deep taproots and an extensive lateral root network.
 
If you just cut the tree down, the roots can send up new shoots.
 
That’s why getting rid of black walnuts requires dealing with the roots, not just the trunk.
 

3. Nuts and Seedlings Spread Easily

Each black walnut tree drops hundreds of nuts every fall.
 
Squirrels and other animals bury them, and before you know it, you’ve got seedlings popping up everywhere.
 
So the challenge of how to get rid of black walnuts isn’t just about one tree, it’s about the whole cycle.
 

How to Get Rid of Black Walnuts: The Trees

How to get rid of black walnuts starts with tackling the mature trees.
 
Here are the most effective approaches.
 

1. Cut and Treat the Stump

Cut the tree down as close to the ground as possible.
 
Immediately paint the fresh stump with a concentrated herbicide like glyphosate or triclopyr.
 
This method for getting rid of black walnuts works because the stump absorbs the chemical and kills the roots.
 
Timing matters, so apply the herbicide within minutes of cutting for the best results.
 

2. Girdling the Tree

If you don’t want to cut the tree right away, girdling is another option for getting rid of black walnuts.
 
Cut a ring through the bark around the entire trunk, deep enough to reach the wood.
 
This stops the flow of nutrients and slowly kills the tree over several months.
 
It’s slow, but it’s effective and requires less cleanup than a full removal.
 

3. Hire a Professional for Large Trees

Big black walnuts near structures or power lines are dangerous to remove yourself.
 
A certified arborist can handle the job safely and often includes stump grinding.
 
It costs more, but when getting rid of black walnuts means protecting your property, it’s worth it.
 

How to Get Rid of Black Walnuts: The Nuts and Seedlings

Getting rid of black walnuts also means dealing with the nuts and the seedlings they produce.
 
Here’s how to handle them.
 

1. Rake and Remove Nuts Promptly

Rake up fallen nuts as soon as they drop in autumn.
 
Don’t let them sit on the ground, because that’s how new trees start.
 
Collect them and dispose of them in the trash, not your compost pile.
 
This simple step is key when getting rid of black walnuts before they take root.
 

2. Pull Seedlings by Hand

Young black walnut seedlings are easy to pull when the soil is moist.
 
Grab the stem near the base and pull straight up to get the whole root.
 
If you leave any root behind, the seedling can regrow.
 
Consistency is what makes getting rid of black walnuts successful over time.
 

3. Mow or Smother Small Patches

For small areas, regular mowing keeps seedlings from getting established.
 
You can also lay down cardboard or black plastic to smother them.
 
This blocks sunlight and stops growth, helping you get rid of black walnuts without chemicals.
 

How to Get Rid of Black Walnuts: Preventing Their Return

Once you’ve removed the trees and cleaned up the nuts, keeping black walnuts from returning takes a bit of ongoing effort.
 
Here’s how to stay ahead of them.
 

1. Monitor for New Shoots

Check the area regularly for new shoots sprouting from leftover roots.
 
Pull or treat them immediately so they don’t gain strength.
 
Staying vigilant is the best way to keep getting rid of black walnuts from becoming a recurring chore.
 

2. Improve the Soil

Juglone can linger in the soil for years.
 
Adding organic matter and planting juglone-tolerant species helps restore the area.
 
This won’t kill black walnuts directly, but it makes the ground less hospitable for new ones.
 

3. Keep Animals Away

Squirrels love burying black walnuts, so discourage them from hanging around.
 
Remove food sources and consider barriers around garden beds.
 
Fewer buried nuts means fewer seedlings, which makes getting rid of black walnuts much easier.
 

So, How to Get Rid of Black Walnuts?

Getting rid of black walnuts takes patience, but it’s completely possible.
 
You start by cutting and treating the trees, then stay on top of the nuts and seedlings.
 
Preventing their return means monitoring the area and making the soil less welcoming.
 
Whether you’re tackling a single tree or a whole grove, the key to how to get rid of black walnuts is consistency and persistence.
 
With the right approach, you can reclaim your yard and enjoy a space free from these stubborn trees.