C115 Zhong Wen's Daily Life in the Whispering Blossoms
"However, this mountain is called the Longevity Mountain. There is a monastery called the Five Manor Monastery in the mountain. It is called the Earthroot Fruit. It blooms once every three thousand years and bears fruit once every three thousand years. Just by smelling it, it can live for three hundred and sixty years. If you eat one, you can live for forty-seven thousand years