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Top Questions About Black Walnut Trees

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Questions About Black Walnut Trees

  • Answered by
    roseman on
    November 21, 2010
    A.

    Hello and thanks for this question. When I lived out on the farm we had several Black Walnut trees that presented me with such a challenge. I found that I could grow corn, squash, melons and carrots okay. Also lima beans, snap beans and some onions will tolerate the juglone in the soils according to some university testing. There can also be a problem with the juglone being abosorbed into the veggies that can cause allergic reactions, so be careful when eating the veggies that are produced in soils within range of the black walnut trees root systems.

    Stan

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  • Answered by
    Nikki on
    March 9, 2011
    Certified Expert
    A.

    Unfortunately, no. These plants do not grow well around black walnuts.

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  • Answered by
    Nikki on
    April 6, 2011
    Certified Expert
    A.

    This article has some suggestions for plants:
    https://www.gardeningknowhow.com/edible/nut-trees/black-walnut/black-walnut-compatible-plants.htm

    Adding soil will only help in the short term. You are better off planting plants that can tolerate black walnuts.

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  • Answered by
    Nikki on
    April 10, 2011
    Certified Expert
    A.

    Squashes, Melons, Beans, Carrots and Corn are known to be tolerant of black walnuts. Everything else is susceptible to the toxicity.

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  • Answered by
    Heather on
    May 1, 2011
    Certified Expert
    A.

    You may want to cut the wounded area to be flat rather than jagged, if possible. This will help keep disease out of it. You really can't stop the sap, and to be honest, it is the best things for the tree as it will keep the wound clean. Do not use anything to seal the wound as this can trap disease in the wound.

    This article has some ideas on how to clean the sap off the trunk:
    https://www.gardeningknowhow.com/ornamental/trees/tgen/how-to-remove-tree-sap.htm

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  • Answered by
    Nikki on
    August 2, 2011
    Certified Expert
    A.

    If the crepe myrtles are growing well, then it is more likely shade than the black walnut that is keeping them from blooming. If it was the black walnut, it would be making the whole plant sick. This article should help with getting them to bloom: https://www.gardeningknowhow.com/ornamental/trees/crepe-myrtle/crepe-myrtle-not-blooming.htm

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  • Answered by
    Susan75023 on
    August 9, 2011
    A.

    https://www.gardeningknowhow.com/ornamental/trees/tgen/repairing-tree-bark-damage.htm

    This is a link to an article provided by the GardeningKnowHow website.

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