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: SPEC: summer blooming winter iris?

From: Kenneth Walker <kenww@pacbell.net>

According to "The World of Irises" published by the AIS, "[I. unguicularis] Plants able
to withstand as much as -14 degrees C (6 degrees F) under snow cover are badly
damaged by similar temperatures in an open winter". And according to "The Gardener's
Guide to Growing Irises" by Geoff Stebbings [Britain], "although the buds are frost-
hardy the open blooms are not". Based on this information, I would guess that they
would not thrive much below zone 8. However, Fritz Kohlein, in "Iris", says that
he was able to grow I. cretensis (frequently considered a variety of I. unguicularis)
in Germany outdoors with winter prodection for over 3 years. Has anyone here
grown  them in cooler climates?

   Ken Walker, Concord, CA, USDA zone 9

Dean Sliger wrote:

> Does anyone know the winter-hardiness Zone for this species?  None of my reference books mention a hardiness Zone.

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

Transfer your big list to ONElist and earn $500!
For program details, go to
<a href=" http://clickme.onelist.com/ad/biglist1 ">Click Here</a>


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