The province has more than 17,000 hectares of land dedicated to growing the fruit, called Zereshk in Persian.
Qaen, a city in the province, is the place where some 6,000 hectares have been specified to cultivating the fruit plants.
The barberry fruit with a wonderful flavor is popular in Iran and is generously used in the country's cuisine.
The harvest season starts in early October and continues until early December.
The province exports the fruit to more than 30 countries, including Russia, Germany, Australia, Austria, and the US.
AA/MG