Crinum x powellii 'Album' winters here in the Lake Michigan snowbelt of southwest Michigan. Haven't had the opportunity to try any other crinums in the garden, but that should change soon. Given that Zantedeschia elliottiana and other such improbable things are winter-hardy in these parts, my guess is that a goodly number of crinums will prove so. Russell Berrien Springs, Michigan, USA, USDA zone 6 Russell Stafford Odyssey Bulbs 8984 Meadow Lane, Berrien Springs, Michigan 49103 269-471-4642 http://www.odysseybulbs.com/