We're halfway through October, which means you can safely purchase pumpkin without fear of it wilting into a sloppy orange mess on your doorstep before Halloween*. Naturally, this is San Francisco so any old trucked-in gourd at the Safeway won't do, and 7x7 has compiled a list of Seven Awesome Bay Area Pumpkin Patches where one can pick up humanely-raised squash-like fruit to make your own starting lineup of pumpkin Giants while participating in any number of harvest time activities like hayrides, haunted houses and maize mazes (if you're in to that sort of thing). [7x7]
(*Hidden in that sentence is a joke about drunk Giants fans, if you care to make it.)