Re: REB:Rebloomers Revisited

laurief wrote:

I would say that an off season bloom of any plant that has
been disturbed recently is perhaps an indicator of possibilities, but must
be viewed with caution until the plant is established. If the plant does
the same after it has re-established and has been growing for more than a
year, I would call it significant.



Hmm. Thank you for explaining that point, Dave. If the RIS adopted the guideline of "rebloom must be reported ONLY on irises that have been growing undisturbed for at least one full year prior to the reportable bloom-rebloom sequence", I would have to retract the rebloom I reported on LILTING several years ago (and possibly all the other rebloom I have reported). That rebloom occurred on a clump that had been planted as a single rz the previous summer, as well.


I seem to be missing a point here. The Judges Handbook(apple) sets the criteria for judging iris. The RIS (orange) sets its own criteria for reporting rebloom. Nowhere in The RIS criteria do I find it even implied that the reported rebloom must adhere to the criteria in the Judges Handbook...



I should add that I don't know 'Lilting'; perhaps it is already known to be
a "rebloomer"?



LILTING has been reported to rebloom in zones 6, 8, and 10. Problem is, we have no way of knowing under what conditions those reports were made. So, is LILTING a rebloomer, or does it just make a habit of blooming out of season after being disturbed?

Laurie



I don't think it has much to do with being disturbed as being revitalized by replanting, an effect similar to giving new vitiality to plants by dividing the clump. We sometimes see fall bloom on this years new Rz's. Sometimes we will only see fall bloom on first year clumps .

The RIS wisely reports rebloom by location to compensate for climatic variance.

Would an iris "down under" be considered a rebloomer if it bloomed in the fall and again in the spring of the same year??

Michael M.

-----------------
laurief@paulbunyan.net
http://www.geocities.com/lfandjg/
http://www.angelfire.com/mn3/shadowood/irisintro.html
USDA zone 3b, AHS zone 4 - northern MN
normal annual precipitation 26-27"
slightly acid clay soil

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