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  • From: "Hector Black" <hblack1925@fastmail.fm>
  • To: "nafex ibiblio mailing list" <nafex@lists.ibiblio.org>
  • Subject: Re: [nafex ibiblio list] Nitrogen-fixing shrubs: risk for fire-bligh in pear & questions re: suckering
  • Date: Mon, 2 Jan 2012 17:04:07 -0600

Hi Steven,
You're right about Goumi not spreading by rhizomes. It will get to be a sizeable bush, maybe 15 ft. But I haven't noticed the same - fixing effect that Autumn olive has. Seems less, although it does have the nodules with Frankia bacteria.
I think Goumi about get too big for pot culture. Have your tried sea buckthorn in your climate. We had a lot of japanese beetle damage and our humidity seemed to cause a problem with foliar fungi. Pots would work for Sea Buckthorn, but you would miss out on the N-fixing? The foliage of some (perhaps all?) eleagnaceae is high N.
hector black, zone 6, middle tn
----- Original Message ----- From: "Steven Covacci" <filtertitle@aol.com>
To: <nafex@lists.ibiblio.org>
Sent: Sunday, January 01, 2012 11:35 PM
Subject: [nafex ibiblio list] Nitrogen-fixing shrubs: risk for fire-bligh in pear & questions re: suckering




Group:
I was planning on planting some nitrogen-fixing shrubs (sea-buck thorn; goumi; buffaloberry) about 15 to 20' away from of an Asian pear - then, I realized that excess nitrogen in the soil will encourage fire-blight, unfortunately.
1. Does it sound safe to say that the goumi (Elaeagnus multiflora) is the least likely to have roots that would extend far from the plant? I assume that it doesn't spread via rhizome, that it only suckers around its base?
2. If I plant sea-buckthorn (Hippophae rhamnoides) and buffaloberry (Shepherdia argentea) next to my lawn, will suckers extending from the plant that typically form new (yet clonal) plants at a distance from the original if I put that rubber/plastic weed barrier strip around the plant.


Thanks,
Steve



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  • Re: [nafex ibiblio list] Nitrogen-fixing shrubs: risk for fire-bligh in pear & questions re: suckering, Hector Black, 01/02/2012

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