Farmers harvest garlic chives flowers in Jiazhai Township of Chiping County of Liaocheng City, east China's Shandong Province, Sept. 5, 2018. (Photo: Xinhua)

Farmers harvest garlic chives flowers in Jiazhai Township of Chiping County of Liaocheng City, east China's Shandong Province, Sept. 5, 2018. (Photo: Xinhua)

Farmers harvest garlic chives flowers in Jiazhai Township of Chiping County of Liaocheng City, east China's Shandong Province, Sept. 5, 2018. (Photo: Xinhua)

Farmers harvest garlic chives flowers in Jiazhai Township of Chiping County of Liaocheng City, east China's Shandong Province, Sept. 5, 2018. (Photo: Xinhua)