How To Get Rid Of Black Walnuts

Getting rid of black walnuts is a process that requires patience, persistence, and a solid plan.
 
These trees are notorious for their stubborn roots, toxic juglone, and the mess they leave behind.
 
If you’ve been wondering how to get rid of black walnuts, you’re in the right place.
 
Whether you want to remove the tree entirely or just stop the mess, this guide will walk you through the best ways to get rid of black walnuts for good.
 
Let’s dive in.
 

Why Getting Rid of Black Walnuts Is So Tricky

Before you grab a saw, it helps to understand why black walnuts are so hard to remove.
 
Knowing what you’re up against makes the process of getting rid of black walnuts much easier.
 

1. They Produce Juglone

Black walnuts release a chemical called juglone from their roots, leaves, and nuts.
 
Juglone is toxic to many plants, so getting rid of black walnuts also means dealing with soil that’s hostile to other vegetation.
 
This is why you can’t just cut the tree and plant a garden right away.
 

2. Deep, Stubborn Roots

Black walnut trees have a massive taproot that goes deep into the ground.
 
Simply cutting the tree down won’t kill it.
 
The roots will keep sending up suckers, which means you’ll be dealing with black walnuts all over again if you don’t remove them properly.
 

3. Heavy Nut Production

A single black walnut tree can drop hundreds of nuts every year.
 
These nuts are messy, stain surfaces, and sprout new trees if left on the ground.
 
So getting rid of black walnuts isn’t just about the tree—it’s about managing the debris too.
 

How to Get Rid of Black Walnuts: Step-by-Step

Now that you know what you’re dealing with, here’s how to actually get rid of black walnuts.
 
Follow these steps for the best results.
 

1. Cut Down the Tree

The first step in getting rid of black walnuts is cutting down the tree itself.
 
For large trees, hire a professional arborist—this is not a DIY job if the tree is near buildings or power lines.
 
Once it’s down, you’ll still need to deal with the stump and roots.
 

2. Kill the Stump and Roots

Cutting the tree alone won’t get rid of black walnuts.
 
You need to kill the stump to stop it from regrowing.
 
Drill holes into the stump and apply a stump killer containing glyphosate or triclopyr.
 
This will travel down into the roots and kill them over time.
 
Alternatively, you can grind the stump down, but this doesn’t always kill the roots.
 

3. Remove the Nuts and Debris

Rake up all the fallen nuts, leaves, and branches.
 
Don’t compost black walnut debris—juglone can survive composting and contaminate your garden.
 
Bag it up and dispose of it with your regular trash.
 
This step is crucial for getting rid of black walnuts completely.
 

4. Monitor for Suckers

After you’ve cut the tree and treated the stump, keep an eye out for new shoots.
 
Black walnuts are persistent, and suckers can pop up from remaining roots for years.
 
Cut them down or spray them with herbicide as soon as you see them.
 
Consistency is key when getting rid of black walnuts.
 

5. Wait Before Replanting

Juglone lingers in the soil for years.
 
If you want to plant anything else after getting rid of black walnuts, wait at least two growing seasons.
 
Even then, choose juglone-tolerant plants like hostas, ferns, or certain grasses.
 

Natural Ways to Get Rid of Black Walnuts

If you’d rather avoid harsh chemicals, there are natural methods for getting rid of black walnuts.
 

1. Girdling the Tree

Girdling involves cutting a ring through the bark around the entire trunk.
 
This cuts off the flow of nutrients and slowly kills the tree.
 
It’s a slow process, but it’s chemical-free and effective for getting rid of black walnuts.
 

2. Salt or Epsom Salt

Drilling holes in the stump and filling them with Epsom salt or rock salt can kill the roots.
 
This method takes time and can affect nearby soil, so use it carefully.
 

3. Boiling Water

Pouring boiling water over young saplings or small stumps can kill them.
 
It’s not practical for large trees, but it works for smaller black walnut problems.
 

4. Vinegar

Horticultural vinegar can kill young black walnut shoots.
 
Spray it directly on the leaves and stems on a sunny day.
 
It’s a good option for spot treatment while getting rid of black walnuts.
 

Common Mistakes When Getting Rid of Black Walnuts

Avoid these pitfalls to save yourself time and frustration.
 

1. Only Cutting the Tree

Cutting without killing the stump means the tree will grow back.
 
You haven’t really gotten rid of black walnuts until the roots are dead.
 

2. Composting the Debris

Juglone survives composting.
 
Composting black walnut leaves or nuts spreads the toxin to your garden beds.
 

3. Planting Too Soon

Juglone persists in soil long after you’ve gotten rid of black walnuts.
 
Planting too soon means your new plants will struggle or die.
 

4. Ignoring Suckers

If you don’t remove suckers quickly, they’ll grow into new trees.
 
Staying on top of regrowth is essential for getting rid of black walnuts.
 

So, How Do You Get Rid of Black Walnuts?

Getting rid of black walnuts requires cutting the tree, killing the roots, and removing all debris.
 
It’s not a quick fix, but with patience and consistency, you can get rid of black walnuts for good.
 
Whether you choose chemical stump killers or natural methods, the key is to stay persistent and monitor for regrowth.
 
Hope this post has helped you understand how to get rid of black walnuts and gave you a clear plan to tackle the job.