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Re: Black Walnut question

Square Foot Gardening List - http://myweb.flinet.com/~gallus/sqft.html


Juglone *is* destroyed in composting, it takes about a month of high
activity composting to get it. I did this in Baltimore when I lived there,
on the advice of local extension agents, and later Organic Gardening
magazine got Harry Hoitink, PhD, of Ohio State University, to weigh in on
this, and he gave the above advice.

So, yes, compost those leaves and nut husks, be advised that the nut itself
will compost oh so very slowly. If you are not a compost shredder and turner
type, make sure the walnut stuff is contained within the moist active part
of the pile, as materials left on the edges may be slow to break down,
juglone and all.

The roots are another matter, they will remain toxic to plants for some time
even after the tree is killed if left in the soil. Could be a situation for
container gardening or deep double digging and root removal.

Frank Teuton
>
> Juglone can indeed cause problems with many types of plants and the
juglone
> is not removed by composting. For a more in depth discussion, check out
this
> link:
>
> http://www.penpages.psu.edu/penpages_reference/29401/29401181.html
>
> ----- Original Message -----
> Hello, I just moved to a new place and discovered Black Walnut roots
growing
> under my future square foot garden. I thought I was safe having it
situated
> well away from it. I have heard the roots produce juglone, which can kill
> off  certain plants. Are there plants that can tolerate this poison. Also,
> can the  leaves and nuts from Black Walnuts be composted. Thanks in
advance.
>  Brian, Upstate N.Y. zone 5
>
>
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orders over $50.  Click here to start saving:


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