Yes Mam! on your cold stratification for Irises. Hosta's are the same way.
I am watching for a big refrigerator to give some of mine 30 nights of below 30º.
I would pot my Iris and chill those tubers probably the coldest possible that I could for a week or so.
Sidney
Life isn't about how you survived the storm, It's about how you danced in the rain!