The red sunflower, named red lemon, will be on show for the first time at this year’s sunflower exhibition at Liyuan Garden in Wuxi. [Photo/provided to chinadaily.com.cn]

Black swan, a special variety of sunflower, is characterized by its black stamens. Several black swans will be on display at Liyuan Garden’s sunflower show this month. [Photo/provided to chinadaily.com.cn]