Jim, et. al., I have had some really lucky placements for "tropical" plants at my uncle's house in OH, z5. I have had the following callas over winter for several years; Mango Flame Green Goddess aetiopica and unlabeled yellow (same size as Flame) Also, they are in various locations. Most are in really heavy clay soils that really drain rather slowly. But I also have them in the rose bed which has years of mulch that has decomposed to the consistancy of peat and it always stay wet any time of the year. I know that ground temps have been rather minimal the last few years so that might have a lot to do with it. But, I also have had Sabal minor and Rhapidophyllum (needle palms) all over winter with minor leaf damage. So, I think my location is a little more protected that it would appear to be. It is a wide open field mostly. Another observation, I know that I have said this in the past but I'll repeat for new members, Acidantheras survive. The main corms turns to mush but the small side corms don't. They are too small to flower and once they get some size, poof. Mush. All I ever get out of them is a field of grass-like leaves that the thrips love. I also have 5 agapanthus that have made it throuh 2 winters. We shall see this year as well. Tony Avent knows of a grower in MI that has a population of 100+ growing for 6 years in the open ground. This is very encouraging. My source for them was a garden here in So CA that wanted them removed. So I shipped them to OH and put them in the mounded beds and the rose (peat-like) bed. All that I left there are still there as of last fall. John