Hi, Karen, and welcome to the list. I thought I would just make a few comments as long as you understand I'm not all that knowledgeable in the area of mutation whether localized or on a cellular level. My purpose here would be more to relate to you an experience I had last season with one of my Hemerocallis clumps. Last season, one of my daylily fans was pushing up variegated leaves, yellow and green. It was not a completely uniform variegation across the leaf, but it existed from tip to base and on more than one leaf. I decided to separate it from the clump and potted it. I included some slow release fertilizer and nurtured it through the season. Well, by the end of the season, the same fan was putting up new, totally green, totally normal, leaves. I have drawn a conclusion, however incorrect it may be, that the variegation could have somehow been a reflection based on mechanical damage, nutritional issues, or, worse, virus. I would guess, with Iris, you could easily isolate the clump that is producing the variegation. From that, you could gain a greater confidence in its stability, because it will be in a different location, maybe it will get fresh nutritional requirements, and most importantly, it will be easier for you to study the new growth from different growing points that originate from that same area of tissue. Mr. Kelly M. Irvin 10850 Hodge Ln Gravette, AR 72736 USA 479-787-9958 USDA Cold Hardiness Zone 6a/b mailto:kelly@irvincentral.com http://www.irvincentral.com/ Karen E Welty-wolf wrote: > Hello, I'm new to posting here, although I've been reading the archives for > reference off and on for a while. I live in Durham, zone 7a in the Piedmont > area of North Carolina, where gardening involves lots of red clay. My > gardening interests are pretty varied, but I've had some small successes > with bulbs in the past year that have me wanting the learn more. Now I've > got a question about Iris cristata that I'm hoping someone can help me > with. The new growth on my I. cristata 'Alba' this year includes a small > patch with variegated foliage. It looks somewhat similar to the variegation > on Iris tectorum 'Variegata'. There are several new rhizomes that have the > variegation, all tracing back to a single point on the main plant. What's > the biology behind this, and is it likely to be a stable pattern? I've > never heard of a variegated form of I. cristata although I've searched the > internet and the archives here. It wouldn't be the first time I've seen > something really cool develop in my own back yard, but my daughter is > starting to wonder about my gardening methods. Thanks, Karen W > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://www.pacificbulbsociety.org/list.php > >