Years ago a friend of mine down the road grew some kind of zantedeschia on the north side of the house. It was not eathiopica though. I think it was pink. The house was an old farm house with field stone foundation and the basement was probably not insulated, as the old farmhouses tend to be, so I think there was quite a bit of heat loss in winter since the furnace was in the basement. Possibly the soil so close to the house did not freeze at all. We are officially in zone 5b and about, I guess 60 km, from lake Ontario. Do not underestimate the influence of a body of water that large. Toronto, which is only maybe 50 km from us is zone 6 and not including the fact that it is a concrete heat sink. Southwestern Ontario owes its relatively balmy climate (for Canada that is) to the fact that it is wedged between three big lakes. When I was a child visiting my grandparents in Milwaukee, Wisconsin (now zone 5b but probably colder then) there was a house nearby with a thriving bed of Z. aethiopica, running along the entire west side of the house. This was about 5 1/2 miles / 8.3km from Lake Michigan. _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/