My Peace Lily is outdoors, and our humidity ranges from 30% to 80% in winter. I don't water or fertilize it at all between November and the end of February but it gets a little rain. Our temperatures range from 40deg. on the occasional cold night to 80deg. days with high humidity through winter.
Summer's a whole different ball game and it grows like crazy and blooms all the time when it's hot and humid here.
