Napa Valley: The heart of Pumpkin Country Napa is home to a surprising number of men and women who take growing giant pumpkins very seriously. Several locals recently placed in two of California’s annual giant pumpkin contests — the Elk Grove Giant Pumpkin & Harvest Festival Weigh-Off on Oct. 6 and 7 and the Half Moon Bay Pumpkin Weigh-Off on Oct. 8. |