There's a single Rhododendron macrophyllum in a logging area behind my own property that I think must have arrived via bulldozer, because this is below the normal elevational limit for that species. Jane, I'm surprised. Macrophyllum grows at almost sea level here and in the Olympics, though of course it does grow in the mountains too. Diane Whitehead Victoria, British Columbia, Canada maritime zone 8, cool Mediterranean climate mild rainy winters, mild dry summers