It’s no news that Marin, Sonoma, and Napa boast a magical alchemy of sun and soil for the edible gardener. Not only does our kind California climate coax a year-round bounty of fruits and vegetables from our very own garden plots, but our mild winters offer a unique opportunity to grow luscious Mediterranean crops like grapes, pistachios, figs, citrus and pomegranates. The star of this group that has it all—exceptional fruit, evergreen good looks, easygoing needs, and mind-boggling…