I have property on the breaks of the Grand Ronde in NE Oregon., and I'm looking to establish nut trees of some type. Precip is 13" to 15" a year, enough for Ponderosa Pine, but not Western Larch or Doug Fir, with most precip coming as winter snow. Summer rain is infrequent and undependable. Soils are high in clay (the infamous eastern oregon Gumbo mud). Elevation is about 2500 feet with a western exposure. It's zone 5 or 6, depending on climate change and which map you look at. I don't have water rights so irrigation would be little to none. There is one permanent spring on the property.
I'm thinking pine nuts of some type are probably my best bet, but I am hoping I could also grow black walnut or butternut. Is there a possibility pinon pine might grow under these conditions, or maybe Korean or Swiss?
I'm open to any and all suggestions.
Thanks,
Roger