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Walnut Trees

Q.Is the leaking sap from a Walnut tree root poisonous? Thank you.

Zone SP117NA | Anonymous added on April 1, 2020 | Answered

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Certified GKH Gardening Expert
Answered on April 2, 2020

Not to humans, but it can affect dogs and horses, as well as other plants. Although, you would already notice the effects of the tree long before the sap started leaking. It can be hard to grow many plants around them.



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