How many years have the ancient tea trees in Duobei been called ancient trees?

More than 300 years. Duopi Village is the birthplace of Duopi ancient tea trees in Puding, and those over 100 years old are regarded as ancient tea trees. However, die-hard tea lovers generally believe that it can only be regarded as a "big tree" after 100 to 300 years, and it can only be called an "ancient tree" after more than 300 years. The oldest ancient tea tree in Chashan has a history of more than 800 years.