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The Zhongguo Huajing (China Floral Encyclopedia) has stated that around the 4th & 5th century, there was a widespread culture of roses.
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During the Song Dynasty, references existing to "Yuejihua" which were perpetual-flowering roses were cultivated in large cities with their variety rapidly increasing.
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Yuejihua and Qiangwei, the rose culture, were common with a variety of roses.