North American Fruit Explorers mailing list at ibiblio

["Hector Black" <hblack1925@fastmail.fm>]

Hi Donna,

      Some years ago - maybe 25, we were given a clone of P. calleryana that was reputed to be hardy.  No damage at 14 below zero F.  I'm trying to remember if it was there during the 20 below freeze, I think so, but not certain.    Hector Black, zone 6 middle TN

----- Original Message -----

From: Kieran &/or Donna

To: North American Fruit Explorers

Sent: Friday, September 04, 2009 9:49 AM

Subject: Re: [NAFEX] Wild(?) pear question

No, the one thing I read every time about calleryana is that it's NOT hardy as a rootstock.  That leaves P. ussuriensis as the most likely candidate.  Okolo is a  ussuriensis offspring that may be hardy enough for you, from Dr. Hansen's work I think.  I didn't get good takes from my grafts of that one, but if you'll look at the Corvallis site, they have a list of hardy pears.  You'll want only the very hardiest.  You can call for nominations right here.  Donna

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