Lemon trees, like Italians, seem to be happiest when they are touching one another,” wrote British novelist D.H. Lawrence in his travelogue, "Sea and Sardinia."

Lemon trees, like Italians, seem to be happiest when they are touching one another,” wrote British novelist D.H. Lawrence in his travelogue, "Sea and Sardinia." The lemon trees are still touching, but now the unspoken rule for Italians is non toccare (no touching).