Thanks for the update.
All of the Whenever Rebloomers are happiest when divided often. The divisions on outside of clump have some room to move into.
From: El Hutchison <email@example.com>
Sent: Fri, Oct 8, 2010 1:58 pm
Subject: [iris-photos] SDB Blueberry Tart Reblooming!
SDB Blueberry Tart, Chapman 2002, is reblooming and I didn't even notice it til a a few minutes ago, I've been so busy on another side of the garden this morning. I was weeding in that bed just the other day and saw no bloomstalks.
Chuck, this clump hasn't been moved for about 6 years, although the rebloom stalk is on the outside edge of the clump.
El, near Winnipeg, Manitoba, Canada Z3