I was in Palo Alto, California the last week of March & was impressed by the high number of yards with no grass, the beautiful natural grass landscaping and front-yard vegetable gardens, and the many public gardens! Here are some photos, many of which are of the Elisabeth Gamble Garden or the Rinconada Community Garden next to the public library. Some are of front yards as I walked around town.
If it inspires you to move to California and start growing things, there are a ton of great resources including 52 Weeks in the California Garden by Robert Smaus. The Rinconada Public Library next to the community garden had many beautiful gardening books and a sale shelf with a few gardening books for cheap.