Rachel Bilson and her little sisters, Hattie and Rosemary, visited the Underwood Family Farm in Moorpark yesterday to pick fruit and vegetables. The trio are the latest to venture just outside LA to stop at the lavish green estate. Jennifer Garner took Seraphina and Violet to the farm earlier this year, and Gwen Stefani joined Kingston and Zuma among the fresh veggies two weeks ago. Rachel's TV schedule will take her to another rural location this Fall when her new prime-time series, Hart of Dixie, debuts on the CW. The show, which has Rachel once again teaming up with O.C. creator Josh Schwartz, is set in the deep South, with Rachel playing a doctor transported from NYC. For more details, check out Buzz's Hart of Dixie pilot review.