hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

Re: louisiana iris

From: Gerry Snyder <gcsnyd@loop.com>

Dennis Kramb wrote:
> ....  I tried keeping some Louisiana Irises in containers
> (above ground) during this past winter.  75% of them died.  And only 50% of
> the survivors bloomed.
> .... but I think my "container
> experiment" pretty much demonstrates that most Louisianas can't tolerate
> their roots/rhizomes getting as cold as 10 degrees F during winter.

Is it possible that the potted iris went through a lot more freeze-thaw
cycles than those in the ground? Like daily for a while or two?

Very low temperatures tend to be MUCH less harmful to irises than
freeze-thaw. I would tend to think that just about everything in an iris
would be frozen at 20 deg F, although salty enough water can remain
liquid down to 0.

Of course, that's all academic here in sunny Los Angeles.

Gerry, in the process of turning a jungle of weeds into a mere

--------------------------- ONElist Sponsor ----------------------------

ONElist now has T-SHIRTS!
For details and to order, go to:


 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index