I've been perusing a lot of seed vendors here in California that specialize in
native seeds. One species that has caught my eye is
Torreya californica, or California Nutmeg.
It has several properties that make it very desirable from a
permaculture perspective. It's capable of growing in many different habitat types across its native range. It can regrow from its
roots, making it useful for coppicing. The
wood is incredibly rot resistant, similar to
black locust -
According to the forest service article on it, "Trees cut over 100
years ago have been found lying on the ground with little rot". It also produces edible nuts that are good for both wildlife and humans.
There are drawbacks. It's dioecious, so you need males and females near each other. It reportedly smells unpleasant. It also grows rather slowly - seeds take 9 months to germinate!
Based on what I've read its relative rarity has kept it from being too popular, but it's getting more attention in recent years as a specialty lumber.
Larner Seeds has seeds of it for sale, but I actually just bought the last ones myself. I'm not sure if there are other places to get it.
I'm very curious if anyone here has had the chance to grow/use this tree before. It's endemic to California but I imagine it would grow well throughout the Pacific coast, at least until you go north
enough for the ground to freeze.