structural:expansion, linguistic:paraphrasing, structural:summarization
Culture

The plum blossom is the city's emblem, chosen partly because of the long history of local plum cultivation and use, and partly to recognize the plum's current economic significance in terms of cultivation and research. Local wild plums were used medicinally during the Qin and Han dynasties. Cultivation of the fruit began during the Song dynasty. Some traditional new year customs revolve around the planting of plums.