New and Unread Tree-Mails
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Name: Lyndylu Oregon's high desert (Zone 5b)  LynnDel May 29, 2018 10:04 AM CST |
| I love the rich, velvety look of dark purple and dark blue irises, but mine tend to get a few little white speckles on the falls. What causes that? Can it be prevented? |
Name: Arlyn Whiteside County, Illinois (Zone 5a)      crowrita1 May 29, 2018 10:25 AM CST |
| Usually, I suspect drops of dew...or rain. |
Los Altos, CA (Zone 9b)  AndreaD May 29, 2018 2:59 PM CST |
I've been having a lot of problems with white marks on the dark velvety falls this year, too. It is really irritating. I'm not sure it is rain, because we haven't gotten that much rain, but I guess it might be dew. It's not just speckles, either, but streaks as well, and it is not all the dark irises, just some of them.  I would sure like to figure out how to prevent it, but   |
Name: Lyndylu Oregon's high desert (Zone 5b) LynnDel May 29, 2018 3:27 PM CST |
| Mine don't appear to be water marks; I was just wondering if it might be scarring from bits of sand that are blown against the falls. I will need to be more attentive and see if the irises that are not exposed to the wind (we are in a windy area) get the same little white specks where they're not supposed to be. Sometimes I get white strings on them that I am pretty sure are spider webs that have gotten blown against them. I haven't figured out how to get them off, but at least they don't cause any damage. |
Los Altos, CA (Zone 9b) AndreaD May 29, 2018 4:09 PM CST |
| Lynn, I think you may be onto something. My worst problems are on the dark iris that I have in my front yard, which is on a very busy street. I've wondered if the marks are from tiny bits of debris thrown up by the passing cars. I've thought about moving my dark iris to the back. |
Name: Kent Pfeiffer Southeast Nebraska (Zone 5b)           |
| Freezing, or near freezing, temperatures at late stages of bud development can create white marks on the falls. It can happen to the standards, too, but they are less vulnerable to damage being tucked more deeply into the bud. |
Name: Lyndylu Oregon's high desert (Zone 5b) LynnDel May 30, 2018 9:16 PM CST |
| Interesting info, Kent. I had not known that before. Thanks! |
Los Altos, CA (Zone 9b) AndreaD May 30, 2018 10:22 PM CST |
| Thank you, Kent! Let's hope for some warm weather in March and April next year! |
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