In a small town I frequently visit in western Virginia, up in the Valley of Virginia between the mountains (and thus elevated), I've seen two gardens with impressive Zantedeschia plantings. In one garden there are huge (up to about 4' tall) plants, some with white spathes and some with yellow spathes; with them are some shorter (but not much shorter) pink-spathed forms. In another garden there is a really impressive planting roughly two yards square (i.e. four square yards) of one of the orange-red cultivars ('Flame' maybe). This is something to see when lots of plants are blooming. Both of these plantings are out in the open with no protection from nearby buildings, fully exposed to the elements. And I've never notice any effort to protect the plants in the winter. I think this is solid zone 6 country. JIm McKenney Jim McKenney jimmckenney@jimmckenney.com Montgomery County, Maryland, USA, 39.03871º North, 77.09829º West, USDA zone 7 My Virtual Maryland Garden http://www.jimmckenney.com/ BLOG! http://mcwort.blogspot.com/ Webmaster Potomac Valley Chapter, NARGS Editor PVC Bulletin http://www.pvcnargs.org/ Webmaster Potomac Lily Society http://www.potomaclilysociety.org/