Joe--I brought several Arizona madrone with me when I moved to Hood River from Tucson in '06. They did very well the first summer here. Since I collected them from elevations from 6,000' to 8,000' I felt they would not need much winter protection here, since it is only 500' above sea level.
Winter '07 was pretty normal for Hood River; lots of snow, ice storms, etc. The madrones seemed o.k. through winter but failed to bud inthe spring and were dead by July. I have collected a small Pacific madrone and will try to be a little more vigilant about winter protection with it. Hope this is helpful to you
