I forgot to mention something in that they are "lilies" and as such, whether in the ground or in the basement, they need to go dormant and automatically do. While I store Dahlia bulbs in the basement in sawdust away from light, and kept dry, I also do the same thing with Oriental bulbs which I had growing on a deck. So with Daylilies, I would keep them dry, and I don't think light matters. Remember, I am not an expert on Daylilies, but I might become so if I live long enough????? Highly unlikely!!! LOL.