Oranges, lemons, limes, Mandarins all thrive in Larkspur’s climate if planted in full sun. Big fruited citrus like grapefruit don’t do as well because we don’t get enough heat (think Texas gulf). As well as producing wonderful fruit, citrus trees are a handsome addition to any landscape. 

If too much fruit for your own use is a problem, contact the Marin Open Garden Project at http://opengardenproject.org Someone from that organization will harvest the fruit. Volunteers keep a family-sized portion for themselves, leave a portion for the homeowner, and donate the rest of the harvest to other charitable organizations in need of food.