In this installment of Market Merchants from the Hollister Farmers Market, learn about Penny Farm based in Hollister. The farm serves up heirloom tomatoes and all-natural vegetables. Market Merchants is produced in association with the Hollister Downtown Association, and new segments will show each week during the Hollister Farmers Market, which runs from May through September each Wednesday in downtown Hollister from 3 p.m. to 7:30 p.m.