Maryl said: If you are going to take your daylilies inside, here's what I would suggest. Let them stay outside for as long as you can while letting the foliage begin to die back. When really cold temperatures begin to move in for days at a time I bring mine inside regardless of how the foliage is....... Dormant or mostly so daylilies require very little water.
......Maryl
floota said:I would choose to winter them outside in a SHELTERED location. Put the pots together near a southern exposure wall if possible, and (this is the important part) put mulch or soil or clippings around and between the pots, so they are mounded up like a small hill.