Planting Near Walnut Trees - Knowledgebase Question

Rosemount, MN
Question by janlarson
February 24, 1998
I would like to plant pines in a location where walnut trees were removed two years. Is it still risky to plant here?


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Answer from NGA
February 24, 1998

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Fortunately, the substance called juglone that's released by walnut tree roots is toxic for only one year after the tree is removed. So, you can safely plant anything you like in that location.

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