He is best known for "Spring River in the Flower Moon Night" (Chun Jiang Hua Yue Ye, 春江花月夜), one of the most distinctive and influential Tang poems, which has inspired numerous later artworks.
[1] He is traditionally grouped with He Zhizhang, Zhang Xu, and Bao Rong as the Four Poets of Central Wu (吳中四士), the Lower Yangtze region.
[2] Only two of Zhang Ruoxu's poems are extant, but one of them, "Spring River in the Flower Moon Night" (Chun Jiang Hua Yue Ye, 春江花月夜), has long been well known and considered an extraordinary work.
The composer Peng Xiuwen created a piece of orchestral music with the same name, which has since entered the classical repertoire for the traditional Chinese instrument guzheng.
[6] During the Lantern Festival of 2013, calligrapher Wang Dongling (王冬龄) gave a live calligraphy performance at the Hong Kong Museum of Art, creating a 6 metres (20 ft) high by 11 metres (36 ft) wide work of Spring River in the Flower Moon Night.