Scanning a prison menu is a bleak task. Common food items range from nutraloaf - a mishmash of ingredients baked into a tasteless beige block - to, rumor has it, road kill. The substandard quality of food at some correctional facilities has led to protests and hunger strikes. But some states, along with correctional authorities and prison activists, are discovering the value of feeding prisoners nutrient-rich food grown with their own hands. Prison vegetable gardens, where inmates plant and harvest fresh produce to feed the larger prison population, are on the rise in correctional facilities from New York to Oregon. In addition to being a cost-effective food source, the gardens are seen as a way to save money on healthcare for prisoners struggling with diabetes, hypertension, and other ailments. But the gardening itself provides opportunities for personal growth, as inmates learn how to plant, raise, and harvest crops. It also functions as a method of rehabilitation in what is often a deeply stressful environment. Inmates are sent to prison as punishment, not for punishment, says Tonya Gushard, public information officer for the Oregon State Correctional Institution (OSCI) in Salem. The OSCI has run a garden program at its facility since 2008. Between 2012 and 2015, Oregon state prisoner-gardeners raised more than 600,000 pounds of produce for nearly 14,000 inmates. The potential savings for taxpayers in health costs from providing inmates with high-quality food cannot be overstated.