I bought some "mixed Calochortus" years ago... several of the varieties have died... but one, a white one with red markings has performed admirably here. It has been blooming for a few days now and looks just great. I grow it against my house on the south side, in a sandy well drained soil. I think it must be Calochortus venustus. It's great to be able to grow these outdoors, year round, in Ohio. Dennis in Cincy