This is growing in Redwood City, CA. I thought it was a potato vine, but the flowers look different in the middle.
SOLVED: Please ID
Looks like a blue potato bush to me. Solanum rantonnetii. I can't make out any different flowers in the middle.
I had this for years. You get color very fast with it. I trained a 5 gallon bush into a 5 headed standard lollipop bush. It stayed neat and purple 10 months a out of the year.
Yes, that's it! Strange that they call it "Blue Potato Bush" when it's actually purple. Sounds like a wonderful plant and I see it growing everywhere. The centers aren't as pronounced as the Chilean Potato Vine. Thanks so much!