This year the Ca live oaks, cork oaks, osage orange, and wisteria are doing pretty good. I put these up on an ad on craigslist to see if some one would barter with me. I can not sell them without a license. I have not got around to getting one yet.
In the U.S. I would guess that California has one of the biggest bonsai communities by population. I will see if the bonsai lovers of Los Angeles are on craigslist.