Re: Re: CULT:Leaves caught in fans/"duplex" blooms

> --- In iris-talk@y..., GesineLohr@e... wrote:
> "...growing leaves, caught in the fold of the fan they're coming
> out of.  On the ones that do this the worst, the emerging leaves
> become twisted around/broken up --Gesine"
To which Neil mogensen replied:
> We had a number of hard frosts in late winter and during the spring, 
> with lots of warm-mild/harsh reversals.  I was assuming the problem 
> was weather related. 

Gesine,

I agree with what Neil and Bill Shear have said about this phenomenon. Our
spring weather tends to be very erratic with wide swings between warm and
cold, wet and dry spells, and I see some irises with this problem nearly
every year (including this year), though not necessarily the same cultivars
each time. It mostly affects the bearded irises (which have broader
leaves), not the more narrow-leaved beardless irises (though one
pseudacorus has been affected this year). Irises with severe problems
generally do not bloom, either.

With regard to your "duplex" blossoms, I also see some of these every year.
They are invariably among the last flowers to bloom on the stalk. I have
assumed that it is a physiological problem in which the plant is too
exhausted to produce a normal flower or that due to rising temperatures the
development of the bloom was forced and there wasn't time to put all its
parts together. I also see blooms with multiple parts every year. These are
invariably among the first flowers to bloom on the stalk, and usually on
early blooming varieties. The first bloom of every stalk on SMITTEN KITTEN
that opened so far has had four standards and four falls, for example.

Jeff Walters in northern Utah  (USDA Zone 4/5, Sunset Zone 2, AHS Zone 7)
jcwalters@bridgernet.com


 











 

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