Here's a plant for $8.00 and they ship to CA.

Here is a link that might be useful: Stewartia mondelpha

Now that beats $40-50!!
Thank you kindly.

Also, It is winter hardy to Zone 5, possibly zone 4!. I have seen a tree that is over 18 inches across and about 30 feet high.Simply amazing.I have two growing here. Cinnamon colored bark and the most unusual twig pattern.Grew them from seed many years ago. Have seen Stewartia serrata with 12 inch trunks and Stewartia rostrata with trunks over 12 inches also. I have a Stewartia ovata growing here in Connecticut and have three Stewartia malecodendrons also that bloom like crazy. The most exquisite bloom on the latter. It has pink streaks in the white petals and has a deep blue center.Not real tall. I have them sited on the south side of the house, protected. I am in a Zone 6b situation. I have some great pics of them.