Citrus fruits of the Plana Food and drink · Castelló de la Plana, La Plana Alta, Castellón Image of Castelló de la Plana, not of the place itself. Oranges, mandarins and lemons grown on the irrigated land of the Plana, covered by the protected geographical indication Cítricos Valencianos; the crop transformed the comarca's landscape from the nineteenth century onwards. Photo: zejijunto (CC BY 3.0) What to see and do in Castelló de la Plana