Every spring, the Yale Sustainable Food Project's Seed to Salad program welcomes five classes of second graders from schools in and around New Haven to the Yale Farm for a series of visits designed to teach them about plant anatomy, seed cycles, composting and nutrition. As part of their learning, students plant radish and lettuce seeds and cultivate them over a seven-week period before harvesting to be eaten as part of a salad, topped with homemade dressing, at the program's final session.