Rock sugar plum

Rock sugar plum "Rock sugar plum" is produced in Yong 'anbao Village, Sihai Town, Yanqing County. It has a history of more than 100 years and was originally wild. According to legend, a villager in Yonganbao village went up the mountain to cut firewood and stumbled upon a mountain plum. The red plum fruit set off by green leaves was round, bright in color, dry in core, thin in skin and thick in flesh. There are transparent crystals inside, like rock candy, which tastes sweet, pure and delicious. Subsequently, the villagers grafted it into their own courtyard, and since then, Yonganbao Village has had "rock sugar plums". Now, every household in the village has rock sugar plum trees, ranging from dozens to five or six, with an annual output of 10 thousand kilograms of fresh plums. Other villages come here, or transplant, or graft, and the plum trees are not as delicious as the plums in Yonganbao Village after fruiting. What is the truth? It is worth researching.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)