Black Walnut tree removed, cherry replacement died

Asked February 4, 2018, 8:11 PM EST

Does a black walnut tree toxicity remain in the soil after the tree has been removed? I waited two years to plant a cherry tree in its place, but the cherry tree died. The walnut was removed and stump ground up, but some roots remained. The old tree was about 10’ tall and I didn’t plant the cherry in the exact same spot. Is there something I can add to the soil to counter the old walnut? Thoughts? Thanks so much!

Montgomery County Maryland juglone black walnut tree death of cherry tree

1 Response

Juglone can remain in the soil after a tree is removed. The accumulation and depletion of toxins in the soil is affected by factors such as soil type, drainage, aeration, temperature and microbial action. Take a look at the links from Virginia Tech and U of Minnesota for more information on reducing allelopathic effects. There are lists of plants tolerant to juglone and they can differ.
http://pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/430/430-021/430-021_pdf.pdf
https://www.extension.umn.edu/garden/yard-garden/trees-shrubs/toxicity-of-black-walnuts-towards-othe...

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