The Ban Nong Chang Khuen is the most famous longan growing area in the country. The orchards are located some 8 kilometres before Lamphun and with a further 7 kilometres after a right turn. On both sides of the road are numerous longan orchards. The fruits are in season during July-August. Longans were introduced to the area during the reign of King Rama V and have since spread into neighbouring provinces. There are several species today which are popular among consumers.