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

CULT: Bacterial Soft Rot

For decades I've been lucky that I haven't had to worry much about bacterial rot because my soil drains so well. The only time I generally see it is when a new rhizome is purchased, and occasionally it will rot out and not make it to winter. Previously, I've never had it spread to other clumps nearby. I have even stopped my chlorine bathing of replanted irises for years, and have not seen any difference and no additional loss of irises.

However, I've a new problem. I built a new patio retaining wall, and the soil to fill behind the wall was excavated dirt from a deep depth, very hard and clay like dirt. I realize now I probably should have imported better dirt. I've had irises growing there 3 years, and this past year, brought in and planted 20 or so newer varieties. This winter/spring, I had a couple rhizomes rot out, and I noticed it was spreading. After spring bloom, a couple more which had bloomed so well, (including Decadence), rotted out. As my watering is draining to new clumps, they're showing signs of rot. I'm in the process of removing all irises from that bed.

Other than chlorine bathing prior to replanting, I'm not finding much in books which tells what one can do about "fixing" the entire bed/soil. I'm assuming fumigating the soil would do it, but I am wondering if there is a simpler home remedy, or soil additive to kill off the bacteria. My other consideration is to replace the soil, or just plant other plants there (and not potatoes <grin>). Anyone have any experiences in repairing the soil/bed?

Kitty Loberg

Northern Calif.

To sign-off this list, send email to majordomo@hort.net with the

Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement