Aucuba is marginally adapted to your zone but is worth a try. Fatsia should do fine. Monrovia carries both of these. They also carry a couple of species of Osmunda but they are not rated to your heat zone. I'd consider them pretty iffy.
Check out the following web site. It has a box for you to enter your zip code and will then give you a list of local retailers that carry Monrovia plants:
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