These two forums would be of much more help to you. Try reposting your photos there.
They might not be able to give you a specific cultivar, but they might be able to tell you what type of Lily it is. Once it blooms, you might know more.
Definitely not a daylily.
Plant ID forum
http://garden.org/forums/view/...
Lilies Forum
http://garden.org/forums/view/...
