Re: Species rebloom!
iris@hort.net
  • Subject: Re: Species rebloom!
  • From: R* P* <r*@embarqmail.com>
  • Date: Fri, 12 Nov 2010 17:09:43 -0500 (EST)
Paul: Although I have never heard of the Rubromarginata form of suaveolens reblooming it would not surprise me. One species that has many reblooming cultivars is Iris lutescens. Sadly it has almost dissappeared in cultivation in this country. Years ago many of the cultivars that were being called Iris pumila were actually lutescens. 

----- Original Message -----
From: "Paul Archer" <pharcher@mindspring.com>
To: iris@hort.net
Sent: Friday, November 12, 2010 3:15:30 PM
Subject: Re: [iris] Species rebloom!

They are and have been separate clumps for two Springs now and are established so distinguishing between them is not that difficult. I wasn't expecting them to be all that different but they apparently are.  So I'll have to label them.  They are only just now starting to mingle some but the Fall bloom occurred in one clump between two others that did not.  I can also tell where the point of origin was.  I just can't remember which ones did have Spring rebloom.  The Spring rebloom though wasn't what intrigued me. I am positive that this one clump didn't Fall rebloom last year so was quite surprised.

I could paint all old rhizomes from this year and see if Spring and Fall rebloom occurs on new rhizomes formed that Spring or if it actually was from vernalized rhizomes of the previous year.

I understand about the vernalization and day length relationships. I'm just wondering if it unusual for this species. 


-----Original Message-----
>From: Chuck Chapman <irischapman@aim.com>
>Sent: Nov 12, 2010 9:38 AM
>To: iris@hort.net
>Subject: Re: [iris] Species rebloom!
>
> You will need to seperate out the clones and check if you get spring and fall
>bloom on same cultivar.
>
>Getting maiden fall bloom on a seedling? often is a one off event. Plant will
>carry over vernalization from spring when maturity wasn't sufficient to enable
>day length to trigger bloom.? Once it blooms in spring, the vernalization is
>reset. Reset doesn't occur until plant blooms, so if it doesn't bloom in
>spring, it is primed, waiting for day length signal.
>
>Chuck Chapman
>
>
>
>
>
>-----Original Message-----
>From: Paul Archer &lt;pharcher@mindspring.com&gt;
>To: Iris chat forum &lt;iris@hort.net&gt;
>Sent: Wed, Nov 10, 2010 6:41 pm
>Subject: [iris] Species rebloom!
>
>
>
>
>I went out to do some Fall clean up today and noticed one of my seed grown I.
>suaveolens var. rubromarginata had send up multiple flowers though with some
>freeze damage.  So now I am wondering if this is unusual for this species to
>rebloom in the Fall.  A couple of its sibs did rebloom this past Spring and
>this
>one may have as well.  This one though is a decent (for the species) dusky
>purple with red-purple tinged foliage that persists into the Summer more so
>than
>the others did.  The sibs also had dull yellow flowers.  They do need to be
>separated as they have intermingled some in their mat-forming habit so my
>recollection of which one did what is cloudy.  But this is the only that
>rebloomed now.  I don't generally water or fertilize much especially since
>this
>one is in a raised bed with he Arils and Arilbreds and it has been rather dry
>here lately.  Taking those factors into consideration and the mutiple
>inflorescences it must be the real thing and not a fluke.
>
>Any thoughts from the Rebloom Gurus on this ocurrance or from others who have
>grown this species?  I know that the regular I. suaveolens (and decendants)
>can
>give reblooming seedlings, but haven't heard of many of the pure species doing
>so let alone here in Zone 5 and in the Fall no less.
>
>Paul Archer
>Indianapolis, IN
>
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