Here are a couple of pics of mine last summer. It has much darker purple colouring than zebrina, and the underside of the leaves is green. Very dramatic.
Of course mine died indoors this winter, including all pups. Tough one to keep indoors for 6 months in NJ, but in SoCal your winter is far shorter. My guess is it would be ok.
About 2 feet tall:
Again, on the right side of the pic. The leaf in the foreground is zebrina.
On the left this time, earlier in the summer, in sunlight showing the green underside of the leaf. Gorgeous purple on the top side, its a shame this one died.
Jarred, mine was fine in full sun all summer, it just made the colour nicer!
Good luck,
~Joe