Yeah, dayliles are mostly very hardy perennials. We have trouble with slugs or snails on daylilies in my daughter's garden in Salt Lake. They don't eat the leaves, but climb the stems and eat the flowers.
Peace lily is Spathyphyllum which is a tender tropical, and I don't think, strictly speaking, it's really a "lily" at all. But then neither are daylilies. (Hemerocallis, not Lilium like yours)
But who knows what an accursed slug will eat??
