Re: Re:Growing Iris South Florida
iris@hort.net
  • Subject: Re: Re:Growing Iris South Florida
  • From: B* W* <1*@rewrite.hort.net>
  • Date: Thu, 6 Nov 2014 08:43:32 -0500
Look for iris bloom in the spring and then check on it?  



Betty Wilkerson
Zone 6 KY
autmirislvr@aol.com




-----Original Message-----
From: Linda Mann
<101l@rewrite.hort.net>
To: iris <iris@hort.net>
Sent: Thu, Nov 6, 2014 7:08
am
Subject: Re: [iris] Re:Growing Iris South Florida


LOL - elephant's child,
that's me alright.  I just want to know 
everything.  Unfortunately,
forgetting it as fast as I learn it these 
days ;-)

If there is genetic
control, aren't there always opportunities for 
breaks that would allow
expression of a different a phenotype? 
Especially with epigenetics.

It may
be true that bearded irises in south Florida or south of Dallas 
may not be
capable of continued growth and blooming, but seems like it 
would be worth
trying to find out.

I've tried to grow most of Byer's reblooming
introductions here, and 
most didn't have the disease tolerance to cope with
the high levels of 
environmental stress (humidity, heat, late freezes) here.
Since they 
have at least been reported to rebloom in zone 10, it would be
interesting to see how far south they can live in the east.

<Has to do with
epigentic gene set triggered by vernalization.  Without 
the vernalization
plants are not reset  into next  epigenetic state. So 
no bud set, no bloom.
Plants can hang on for awhile with vegetative 
increase of long rhizome
growth. But will eventually die as no 
increases to take over  once main
growing shoot dies.

Bearded iris need  temperature change seasons  for
ongoing survival.  I 
expect  that the plants found in various  places in
Florida were garden 
  remnants, but never flowered, just were hanging on.>
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