Re: CULT: Bloomout Revisited



I haven't been able to locate Bill Shear's post on encouraging
(bloomout) rhizomes to throw increases, but I did find enough to
remember what the sense of it was.

Along the side of each rhizome (at each leaf axil I think) is a nacent
increase point. They are kept dormant by a hormone (or some other
substance) produced by the active growing point.

So a possible action to recover a bloomout is to cut back the main stalk
being sure to take off the growth point, let the cut dry for a day or
two and plant deeply in a pot. It is also hypothesized that sunlight
retards the growth of these new increases, which is the reason to bury
them deeper than usual. I think I wouldalso shave the roots in this case.

There is an article in one of the AIS bulletins from the early '90s
about burying bloomout rzs in sand. I can't recall which issue at the
moment. (Is this a reason to encourage the Bulletin Indexing project?
Are there additional volunteers?)

I haven't had enought experience with it yet, but I also think you can
take the rz and split it lengthwise (on the vertical plane) to get more increases.


John                     | "There be dragons here"
                         |  Annotation used by ancient cartographers
                         |  to indicate the edge of the known world.
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USDA zone 8/9 (coastal, bay) 
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President, Westbay Iris Society
Director, Region 14 of the AIS
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