When I was in Denver, Colorado a few years ago, C purp was the most common cyclamen I observed in gardens, sometimes without as much shade as I thought it should have, as it looked a bit crispy. I'm told that even at 5,200 feet, Denver doesn't always get much snow cover. I haven't had time to get it planted out in the garden except once, and it appears not to tolerate much competition at least on the West Coast. It does do well in my shade house down to about 12 degrees F, in pots with well-drained mix. On the other hand hederifolium and coum are doing well in the grass of my lawn, in very sandy soil, in full sun. Robin Hansen Southwest coast of Oregon