A Washington D.C. organization, WANDA, talks ways to make a global impact: think global act local. A Washington D.C. organization, Think Global Act Local, talks ways to make a global impact. Entrepreneurship
The best time to move iris is six to eight weeks after they bloom. Division and transplanting can be done at the same time. I would try to flag them now with some type of marking system while in bloom so that you know what you are moving later.
Step 2. Plant bulbs in the fall, when there are no signs of frost on the ground. Plant or transplant full-grown iris plants after they have finished flowering in the fall or the early winter, before any signs of frost.