Iris cristata and small woodland Iris

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cohan
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Joined: 2011-02-03

Great Irises, Mark :)
Lori, if you find out, let me know  ;D

west central alberta, canada; just under 1000m; record temps:min -45C/-49F;max 34C/93F; http://picasaweb.google.ca/cactuscactus  http://urbanehillbillycanada.blogspot.com/

Mark McD
Title: Moderator
Joined: 2009-12-14

Lori wrote:

Your irises are spectacular, Mark!  I wonder how hardy those species are?  Can anyone comment?

Regarding hardiness, they certainly have no problem with Zone 5, so maybe try them in Zone 4.  So far as getting shy-flowering species to flower more, I know that Garden Vision Epimediums has actually selected a form of I. koreana for its free flowering capability.  Yet for me, just moving it to a different spot meant the difference between a plant that refused to flower to one that flowers in spectacular fashion, yet I have little idea about what accounts for the difference, other than being is a spot not so dry, yet the new spot is still on the dry side.

If I find out what makes I. odaesanensis flower better, I shall certainly report back.

Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at aol.com
 

Hoy
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Title: Member
Joined: 2009-12-15

Hope you find a spot to its likening, Mark! It's beautiful! The both are, of course ;)

Trond
Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!

WimB
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Joined: 2011-01-31

There you go again, making me jealous with those wonderful shade-loving Irisses which are impossible to find in Europe!  :-[ :-[ :'(

Wim Boens
Wingene Belgium zone 8a

Mark McD
Title: Moderator
Joined: 2009-12-14

WimB wrote:

There you go again, making me jealous with those wonderful shade-loving Irisses which are impossible to find in Europe!  :-[ :-[ :'(

Maybe there will be some seed set this year (last year there was none, on both species).  With I. koreana, even with good seed set in the past, so far I've only had 1 seedling ever germinate!  With odaesanensis I've had slightly better results.

Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at aol.com
 

WimB
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Title: Guest
Joined: 2011-01-31

McDonough wrote:

WimB wrote:

There you go again, making me jealous with those wonderful shade-loving Irisses which are impossible to find in Europe!  :-[ :-[ :'(

Maybe there will be some seed set this year (last year there was none, on both species).  With I. koreana, even with good seed set in the past, so far I've only had 1 seedling ever germinate!  With odaesanensis I've had slightly better results.

;D

Don't worry Mark. I'm sure I'l find it sooner or later!

Wim Boens
Wingene Belgium zone 8a

RickR
Title: Moderator
Joined: 2009-09-21

Flowers are a bit shorter this year due to the dry spring (and winter): 2 inches high, as oppose to the usual 3 inches.

Iris minutoaurea, given to me as a seedling Iris sanguinea by a fellow NARGS chapter member.  Had she known what she had, she may not have been so generous!

             

Rick Rodich    zone 4a.    Annual precipitation ~24 inches
near Minneapolis, Minnesota, USA

cohan
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Title: Guest
Joined: 2011-02-03

That's a sweet one, Rick!

west central alberta, canada; just under 1000m; record temps:min -45C/-49F;max 34C/93F; http://picasaweb.google.ca/cactuscactus  http://urbanehillbillycanada.blogspot.com/

Mark McD
Title: Moderator
Joined: 2009-12-14

cohan wrote:

That's a sweet one, Rick!

My mature clump of Iris minutoaurea must need division, because instead of smothering itself in flowers as it has in the past, it only has a sprinkling of 10-12 tiny blooms.  Rick, glad you got a good photo of yours.  After a long dry spell, it rained pretty good yesterday, thus the crummy photo I'm showing, and then overnight the heavens let loose with deluge downpours and wild winds; everything is beaten down from the downpours.  Iris koreana was at near peak, glad I got some good photos while the weather was better, before squashed from the downpours.

Anyway, I uploaded this photo of I. minutoaurea, to give a sense of scale, the flowers aren't much bigger than my thumbnail?  Do you think this tightly clumping Iris get too congested, and that's the reason for the floral decline?

Just noticed the first bloom on I. henryi is partially open, and the form of I. odaesanensis with the brown-rimmed signal spot is budded at long last.

Iris minutoaurea scale:

Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at aol.com
 

RickR
Title: Moderator
Joined: 2009-09-21

I received it as a first year seedling in 2005 - not long enough to know if it needs periodic division.  It only began flowering in 2009, a long wait for an iris, in my opinion.  There are a lot of advantages to having photographic records of your plant materials.  Here's a progression of the one plant:

              2009                                        2010
       

              2011                                        2012
       

Mine are bigger than my thumb. :D  The flower measures exactly one inch across.

             

Rick Rodich    zone 4a.    Annual precipitation ~24 inches
near Minneapolis, Minnesota, USA

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