They’re down with staying down on the farm. New England’s farmers are aging, and a third of them plan to hang up their overalls in the next decade, with few successors being groomed. Enter Cultivating Community, a Maine nonprofit that’s found a new generation of land-lovers: refugees from war-ravaged Somalia. Lacking English skills, they rely on their children to translate. They also have to adjust to raising cold-weather crops. But unlike their native-born counterparts, they and their progeny are expected to keep the growing going.