A pitaya is the fruit of several cactus species. Commonly known in English as "dragon fruit," pitayas are originally native to Mexico. They were later transplanted to Central America and to other parts of the world.
Dragon was brought and grown in Viet Nam by French over 100 years, however they were taken into production since 1980. Vietnam is the largest country in Southeast Asia producing Dragon convergently with commercial scale, with more than 35,000 ha area