Black Walnut Trees Are Not Your Enemy

By foraygardengirl
December 26, 2014

Trees are valuable and beautiful assets to the environment and to any landscape, and black walnut trees are no exception. They are lovely trees that provide delicious and nutritious nuts and one of the most valuable hardwoods. They are allelopathic, however, and many gardeners avoid them or get rid of them.

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Dec 26, 2014 8:40 PM CST
Thread OP
Name: Marilyn
Kentucky (Zone 6a)
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The last pic would be a great multi-plant pic! (if you haven't done it already)

Great article, with lots of good info! Thanks for sharing! I tip my hat to you. Thumbs up
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Dec 26, 2014 9:32 PM CST
Name: Jeanie
Minnesota (Zone 4a)
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Thanks Marilyn. It might be posted already...I will check.
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Old gardeners never die. They are just pruned and repotted.
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Dec 27, 2014 8:52 AM CST
Name: josephine
Arlington, Texas (Zone 8a)
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Excellent article, thank you for the list of juglone tolerant plants. Smiling
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Avatar for hazelnut
Dec 27, 2014 9:26 AM CST

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When I moved on to my 3 acre property here in west Alabama, there was black walnut tree in the back yard just south of my kitchen. Believing the mythology that the black walnut would poison anything I planted in my back yard, I had the tree cut down. I gave the basketball hoop attached to the trunk of the tree to the guy who cut the tree down. There had not been a boy living on my property for more than 50 years, so the walnut certainly was a venerable tree. And in the South, a mature deciduous shade tree of any kind would be welcome in the sweltering hot summers. And the walnuts would have provided some diversity to the several pecans that are also in my back yard.

As I learned more and more about juglone, I regretted cutting the tree. I didn't even salvage the lumber from the 100+ old walnut tree which would be very valuable.

So thank you for posting this article. Perhaps some black walnut tree, will be spared from the fate of mine. Juglone tolerance is also discussed in Gaia's Garden, by permaculture writer Toby Hemenway.
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Dec 27, 2014 6:15 PM CST
Name: Jeanie
Minnesota (Zone 4a)
Replace your lawn with a garden!
Bee Lover Enjoys or suffers cold winters Sedums Garden Procrastinator Plant Lover: Loves 'em all! Native Plants and Wildflowers
Region: Minnesota Hostas Heucheras Butterflies Cat Lover Daylilies
Thanks to all for the thumbs up. Hazelnut, sorry to hear about your tree. I might honestly have done the same thing if I had known right off that I had black walnut trees. Fortunately I started gardening with some success before I knew what they were. And thanks for the additional reference too!
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Old gardeners never die. They are just pruned and repotted.
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Dec 28, 2014 2:50 PM CST
Name: Renée
Northern KY
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Thanks for the work you did making such an extensive list of plants!
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Sep 29, 2017 10:24 PM CST
Thread OP
Name: Marilyn
Kentucky (Zone 6a)
Laughter is the Best Medicine!
Region: United States of America Rabbit Keeper Hummingbirder Salvias Charter ATP Member Birds
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Marilyn said:The last pic would be a great multi-plant pic! (if you haven't done it already)

Great article, with lots of good info! Thanks for sharing! I tip my hat to you. Thumbs up


@foraygardengirl

The last two pics of your "Black Walnut Trees Are Not Your Enemy" article are good candidates for multi-plant pics. Did you ever get around to them?
Welcome to the Agastache and Salvias Forum!

Hummingbirds are beautiful flying jewels in the garden!


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Sep 30, 2017 7:36 AM CST
Name: Jeanie
Minnesota (Zone 4a)
Replace your lawn with a garden!
Bee Lover Enjoys or suffers cold winters Sedums Garden Procrastinator Plant Lover: Loves 'em all! Native Plants and Wildflowers
Region: Minnesota Hostas Heucheras Butterflies Cat Lover Daylilies
Marilyn, yes, I did post the photo. I have several shots of that border since it changes through the season.
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Old gardeners never die. They are just pruned and repotted.
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Sep 30, 2017 5:25 PM CST
Thread OP
Name: Marilyn
Kentucky (Zone 6a)
Laughter is the Best Medicine!
Region: United States of America Rabbit Keeper Hummingbirder Salvias Charter ATP Member Birds
Echinacea Butterflies Tender Perennials Bee Lover Container Gardener Million Pollinator Garden Challenge
Then, I'll have to go look for them to view. Thumbs up
Welcome to the Agastache and Salvias Forum!

Hummingbirds are beautiful flying jewels in the garden!


Avatar for greenethumb
Feb 13, 2022 9:58 AM CST
Harrisburg pa
I have planted Magnolia trees under the former drip area of a black Walnut I cut down,will there still be Juglone present in the soil after 2 yrs?
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Feb 13, 2022 8:17 PM CST
Name: Jeanie
Minnesota (Zone 4a)
Replace your lawn with a garden!
Bee Lover Enjoys or suffers cold winters Sedums Garden Procrastinator Plant Lover: Loves 'em all! Native Plants and Wildflowers
Region: Minnesota Hostas Heucheras Butterflies Cat Lover Daylilies
Various extension sources I checked would suggest the juglone could dissipate after a number of months. Should be okay after two years.
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Old gardeners never die. They are just pruned and repotted.
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