Re: [SG] sunflower seeds.. reply.

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• To: s*@MAELSTROM.STJOHNS.EDU
• Subject: Re: [SG] sunflower seeds.. reply.
• From: t* <t*@INCH.COM>
• Date: Sun, 29 Mar 1998 16:44:25 -0000

Dear Kay; you replied to -


" Before planting sunflowers, you should know that they emit a toxin from
> their roots which can choke out and kill surrounding plants.

Nope, it's the seed hulls with the allelopathic chemicals

Kay Lancaster    kay@fern.com
just west of Portland, OR; USDA zone 8 (polarfleece)"



Are you sure?? The Fall 1997 issue of Country Home's COUNTRY GARDENS
magazine is quoted exactly below...

"Sunflower roots, not the seeds, secrete a toxin that inhibits the
germination of other plants. This natural defense, called allelopathy,
also is exhitbited by plants such as Artemisia,barley, and black walnut
trees..."

If you're really sure, the magazine has an address I'd like to use to
query this matter. Do you have a source I could site as reference?

Carmel Matsushita

Queens, New York Zone 6/7
where Pulmonaria saccharta 'Mrs. Moon' bloomed yesterday

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