Walnut Trees Secretions
I was reading the statment that black walnut trees
omit a poison that kills around the tree. My question is why do you think
this is so.....I have many black walnut trees on my property, I have
planted beautiful flower beds around them and they are growing just fine,
not dying. I also have a huge one next to the vegtable garden and it does
not kill anything in it at least for the last 20 years I have planted it.
Black walnut trees do produce juglone that is poisonous to many species of
plants, but obviously, the flowers you've planted are resilient.
Also possibly helpful re. plants that are susceptible vs. tolerant of
juglone in the soil:
Anthony Brach Ph.D.
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Update: June 2012