Louisiana iris

Peter Taggart petersirises@gmail.com
Sun, 14 Aug 2011 13:38:58 PDT
I think they sometimes dry off during summer in the wild too, -and prefered
water depth depends on the species involved. I only grow fulva and x fulvala
though, but "dural White Butterfly" is a pretty fantastic variety which
would make a good contrast to Black Gamecock.
Peter (UK)

On Sun, Aug 14, 2011 at 9:20 PM, AW <awilson@avonia.com> wrote:

> Ahah! That is not something I have ever seen in any of the books I've read
> about them. Sounds like the books only deal with the plants in all their
> glory.  Thank you so much.
> Andrew
> San Diego
> From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org]
> On Behalf Of Tim Chapman
> Sent: Sunday, August 14, 2011 12:10 PM
> Here in Louisiana they are pretty much shot in the summer. You might get
> some to stay evergreen, but you shouldn't see much active growth if at all
> in the heat of summer.  They often look very ratty if they don't go
> dormant.
> Tim Chapman
> On Aug 14, 2011, at 1:50 PM, "AW" <awilson@avonia.com> wrote:
> > In the last issue (Summer) of The Bulb Garden Margerite English writes
> > about various kinds of irises, including Louisiana irises. These
> > beautiful plants are not ones with which I have much experience.
> > Starting las year I acquired several, planted them out in a pond where
> > they grew slowly but apparently quite healthily all summer and winter.
> > This year, in April and May the display was superb. The variety was, I
> > believe, Black Gamecock. Each day there were tens of blooms open on
> > these plants and this went on for well over four weeks. I was most
> > impressed. After the blooming ended the plants produced no new growth
> > and the existing foliage turned yellow. The plants, while not mushy at
> their roots, show no signs of active growth.
> >
> > Could Marguerite, or anyone else here, care to comment on this?
> >
> > The plants were planted in wide containers with the tops of the roots
> > about two inches below water level. I did try lifting them above the
> > water level after yellowing took place. It made no difference. After
> > consulting with Dennis Kramb and indirectly with other people
> > knowledgeable about these plants it appears that the climate, the
> > water depth andwater temperature were all in the right ranges. They
> > received full sun all day after March and full sun part of te day
> > earlier in the year. I have tried applying a fertilizer to attempt
> stimulation of growth. So far, nothing has succeeded.
> >
> > The only explanation I can offer is that the plants just bloomed
> > themselves to death. They had been quite healthy before blooming and
> > acquired the yellow pallor thereafter.
> >
> > If anyone has a better suggestion to offer I would appreciate hearing it.
> >
> > Andrew
> > San Doego
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