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heat and cold tolerance

From: "Harold Peters" <harold@directcon.net>

Individual cultivars do indeed have varying tolerances to environmental
stresses like heat and cold. In my hot climate, some cultivars will not
survive regardless of the microclimate given them. Many of the current
"Valley tolerant" varieties came from seed that survived bred to other
cultivars that survived (either from seeds or tested). John Weiler started
this experiment in a semiformal way. I am continuing the experiment in a
less formal way.  I even have a few seedlings from seed that dropped from
pods when I missed picking the pods in a timely manner. The seeds were
supposed to have gone to Australia.

Harold Peters
Beautiful View Iris Garden,
El Dorado Hills, CA      USDA zone 9
harold@directcon.net    http://www.beautiful-view-iris.com

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