“Maggio” is an old arboreal worship. Each year it takes places in Accettura (Basilicata, south of Italy). Celebration is a wedding ceremony between two trees that lasts several weeks. Its peak is during Pentecost days when a turkey oak trunk – The Maggio – and a treetop holly- The Cima - getting married. The Celebration is rich in anthropological, sociological and religious features: a propitiatory rite of fertility and fecundity for the land and harvest, a mix of pagan and religious rites at the same time.