Knowledgebase

Horseradish & Juglone #868886

Asked May 17, 2024, 12:54 PM EDT

Before i plant horseradish, does it tolerate juglone from black walnut trees?

Kandiyohi County Minnesota

Expert Response

This is a difficult question.  I cannot find any research on the matter. Growers suggest that horseradish is somewhat sensitive to juglone but that it can be grown in raised beds outside the dripline of the walnut.  The dripline is a line extending straight down from the widest point of the tree canopy to the ground--as if the tree were an umbrella.
I am sorry to not pass on scientific studies to you.  I can not find any.  
Steve Miles, Master Gardener, Hennepin County MN (I am a human being, not a bot nor AI). I am an avid gardener but am not a degreed or certified horticulturist or arborist. I am happy to receive follow-up questions if my responses are incomplete or unclear.  This is the University of MN' garden soil testing service.  https://soiltest.cfans.umn.edu/testing-services/lawn-garden This is guidance on how to find a tree expert.  https://extension.umn.edu/planting-and-growing-guides/how-hire-tree-care-professional The Minnesota Landscape Arboretum is a wonderful place to see and learn about plants that grow in Minnesota. https://mngardens.horticulture.umn.edu/minnesota-landscape-arboretum Replied May 17, 2024, 1:38 PM EDT
Thanks so much!
Sent from my iPhone

On May 17, 2024, at 12:38 PM, Ask Extension <<personal data hidden>> wrote:


The Question Asker Replied May 17, 2024, 2:22 PM EDT

Loading ...