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Re: RE: Northern/cold weather hardiness

  • Subject: Re: RE: Northern/cold weather hardiness
  • From: <jacksonb@mts.net>
  • Date: Wed, 1 Apr 2009 9:33:09 -0500

Good morning, Chuck.

It is anything but boring. I wish I understood the science a bit more. But it is very encouraging to have someone so interested and enthusiastic.

Thanks,

BJ in SW MB, Canadian Prairies, Zone 2b CDA/3 USDA

> <snip>
> A lot of various rambling. 
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> Chuck Chapman 
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>   Northern/cold weather hardiness  (Chuck) 
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> Posted by: "SandraB" 
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>   bardraj2003@yahoo.ca 
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>   bardraj2 
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>   Tue Mar 31, 2009 9:22 am (PDT) 
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> Chuck that list of plants provided in the AIS bulletin was I believe
> taken from people who grow those irises in their cold climate gardens.
> I personally don't believe in providing people 
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> a list of 'cold hardy' irises and because of that I didn't provide a
> list to Kate of irises that are cold hardy. I actually didn't agree
> with much of that article myself based on my fifteen years experience 
>  
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> growing TB's iris in my garden. Like I said previously I have very
> little problems with TB irises surviving the winter if they are planted
> early enough. In addition, once they survive that first winter then
> they rarely have a survival problem after
> .. If you are talking about
> irises that continue to grow and increase in later years then I don't
> believe you are necessarily talking about cold hardiness, but rather
> irises that 
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> aren't vigorous and that is not necessarily specific to cold climates.
> =2 
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> 0 
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> There are certain irises that may just do better with certain soils, a
> certain climate during the growing season (e.g. hot summers, dry vs
> wet, etc.) and certain management practises. 
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> For instance, Romantic Evening, that iris, is the worse
> grower/increaser I have. It has bloomed the majority of years I have
> had it (I think over four winters now and I moved it once in that
> time), but it barely increases and it always blooms on short stalks
> with misshappen flowers. Now I could say that iris isn't cold hardy,
> but is it actually a good grower anywhere ? 
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> As for blooming consistently, I have learned from Linda in US Zone 7,
> that it is the fluctations in temperature in the spring that often kill
> the bloom on the iris and I believe Donald has also mentioned the same 
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> thing - so are we going to say irises that don't bloom consistently
> aren't cold hardy when they do the same sort of thing in Texas ? I
> actually think for your climate Chuck, Linda would be able to help you
> more 
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> than for someone in a real cold climate for genetics that are less s
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> Also, I would like to make a comment about medians, especially dwarf
> bearded irises. In the past five years I have purchased a lot of SDB
> irises (because they take up less space) and I have probably lost just
> as many of them in portion to the numbers I have purchased as I do
> TB's. So does th 
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> at mean the SDB are now getting less cold hardy (there
> are some of them that are sure a lot less vigorous) ? 
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> I recall talking to you about Rhonda Fleming - that iris did well for
> me. I believe it would meet your five year trial definition, but your
> experience with that iris was that it was tender - so I think other
> factors are 
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> involved here. 
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> ------------------------------------
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