Roger Whitlock touches on a topic of interest to me when he writes (of Tecophilaea cyanocrocus) " They can handle some frost." Can anyone cite some empirical data which gives us an idea of how much "some" is? I've read that this species spends the winter under the snow in at least some areas of its natural distribution. Has anyone in USDA zone 7 or lower successfully wintered them outside? I wonder if this is one of those plants which might do better for someone such as Ellen Hornig who has terrific snow cover - better than they might do for those of us who do not have dependable snow cover. My plants spent last winter outside in pots and went on to bloom (but not set seed after my clumsy attempt at hand pollination); it was an exceptionally mild winter. Any thoughts? Jim McKenney Montgomery County, Maryland, USA, USDA zone 7, where I checked my summer-dry Tecophilaea only yesterday and they look fine.