Thanks Teresa! I've been saving Walmart bags for my daylilies, and I've got extra if I need them for the Iris. I think I'm going to put them in a box with some peat moss, but if I run out of room, bagging them up will be great.
The good news is that it's raining today, instead of snowing! Maybe some of the snow will finally melt and I can actually get some of them dug up tomorrow!