Location is Paradise CA in zone 8b (between Paradise and Oroville). It will snow there at least once a year, but no significant snow accumulation. Dominant tree flora are Bay Laurel, Digger pine and decidous oak species. Trees are planted with southern exposure and placed near a stucco wall. They also are trying out the cultivar Surprise. Basically you’re going to want to look for varieties that are descended from genetics taken from the Mexican highland areas.