Fairfield is home to Carol Rast at Prairie Sun Farm. What began as a backyard garden passion eventually grew into over a one-acre garden. Specializing in items ideal for farmers market sales, you’ll find Carol in a protective sun bonnet every Tuesday at the Ketchum Farmers Market. Strictly using organic methods but not certified on paper, they follow sustainable land practices, where wise resource allocation is the priority. Two greenhouses grow tomatoes, peppers, and other hot-weather items in a location that can get frost any night of the summer.