Re: Walnut and other toxic trees
- To: perennials@mallorn.com
- Subject: Re: Walnut and other toxic trees
- From: L*@aol.com
- Date: Wed, 28 Apr 1999 00:34:48 EDT
Yes, shagbark hickories are also alleopathic. They, too, emit toxic
substances from their roots that prevent other plants from growing under
them. This is a survival mechanism that protects these trees from being
shaded out by faster growing seedlings of other tree species. The juglone
produced by black walnuts is more toxic than the substance produced by the
hickories, however. --Janis
Original Message:
>>Date: Tue, 27 Apr 1999 22:45:03 -0400
From: Peggy L Kinnetz <pkinnetz@juno.com>
Subject: Re: Walnut and other toxic trees
I have a shag bark hickory in my front yard, and a depressed spot where
probably there was a tree (unknown). Grass is most difficult to grow
there and under the shag bark hickory. I'm wondering two things 1) Does
the hickory tree also produce a toxic substance that would keep grass and
other plants from growing and 2) Is the depressed spot possibly the site
of a walnut or more likely, given that there are lots of hickories and
few walnuts in the area, an old hickory tree site.
>>
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