I think that they will be just fine. I've bought daylilies many times and they bloomed the same year. So, dug up, divided, washed, dried, shipped in a box for a few days, and then they bloomed. On top of that, I moved all of my daylilies from one state to another, and they were out of the ground for two weeks before I could get them planted again, and almost all of them bloomed. If you're really worried about it, remove enough dirt with them so that the roots are disturbed as little as possible, and then replant them, dirt and all.
