Viewing post #880342 by Muddymitts
|I'm with Paul on this. I've been digging, thinning and transplanting Irises for the past month. Mine finished blooming the end of May, and I got right to work because I have a lot to do this year, and I don't want to be doing it during the heat of July and August (hats off to Dee who begins her work then). And like Paul, I am doing two or three a day. What I can't get done by the end of this month, will likely wait until September or so. I've planted Irises here (in Western Kentucky) as late as November and not only were they just fine, many of them bloomed the following Spring.
So your climate is part of the equation -- how early winter comes. Also -- if you are digging up clumps and moving them intact to a new area, that's different than digging up rhizomes and separating them and replanting bare-root. What the rhizomes need is time enough for the soil to be warm enough to allow new roots to grow. The good news is that you can do everything wrong, and your Irises will still likely be just fine. Like Paul said -- they are very forgiving!
Every day is a second chance. Every day is precious time.