pllmickey
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Location: Kansas

tomatoe planting around walnut trees

Any truth to tomatoe plants not doing well around walnut trees?

Gerrie
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Location: Southern Oregon

From what I understand, a lot of stuff won't grow near a walnut, but it's the Black (English) walnut, I believe. In any case, we have one and I went and planted a fairly large garden not more than thirty feet from it and everythings doing fine but it's not where I have my tomatoes, hopefully someone else will have a better answer.
The spiritual life is first of all a LIFE, it is meant to be lived-Thomas Merton

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rainbowgardener
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tomatoes and black walnut

Black walnut trees do emit juglone which is toxic to a lot of other plants. Here's a nice little article about that:

https://www.ppdl.purdue.edu/ppdl/expert/black_walnut_toxicity.html

It basically says that yes, tomatoes are particularly susceptible. However, it also notes that the main area affected is under the tree canopy. You wouldn't plant tomatoes in the shade of a tree anyway. I suspect if your tomatoes are far enough away they will be fine.

TZ -OH6
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Yes, do a google search for walnut toxicity and you will find several university extension fact sheets. Roots do not extend out from trees evenly so you could get lucky with a tomato plant fairly near to a small tree, but if roots are there they will poison tomatoes et al..

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