Compatibility of hackberry tree located near a mature black walnut tree.

Asked August 24, 2017, 12:33 PM EDT

I need shade on the west end of my house. I'm planning on purchasing a bareroot tree from the City of Bloomington. They make them available at the appropriate time for planting in the spring. I'm considering hackberry. It would be planted in close proximity to a mature black walnut tree. I've found web sites that say hackberry is intolerant of jugalone and others that say it is tolerant. So of course I'm confused. Autumn Blaze Red Maple is another possibility available through the city. Looks like that's tolerant of jugalone. But would be interested in knowing your expert answer re jugalone and the hackberry tree. Thank you for any insight you can provide.

Hennepin County Minnesota

1 Response

These sites specifically name hackberry as intolerant. http://extension.psu.edu/plants/gardening/fact-sheets/trees-shrubs/landscaping-and-gardening-around-walnuts-and-other-juglone-producing-plants http://www.omafra.gov.on.ca/english/crops/facts/info_walnut_toxicity.htm http://www.mortonarb.org/trees-plants/tree-and-plant-advice/horticulture-care/plants-tolerant-black-walnut-toxicity Red Maple is listed as tolerant.