Photo taken on June 20, 2020 shows blooming verbena flowers at an ecological garden on border of the Maowusu desert in Yinchuan, northwest China's Ningxia Hui Autonomous Region. Efforts were made to turn desertification lands into the ecological garden in Yinchuan and ornamental plants are cultivated here as part of plans to promote local tourism (Xinhua/Wang Peng)

Photo taken on June 20, 2020 shows blooming verbena flowers at an ecological garden on border of the Maowusu desert in Yinchuan, northwest China's Ningxia Hui Autonomous Region. Efforts were made to turn desertification lands into the ecological garden in Yinchuan and ornamental plants are cultivated here as part of plans to promote local tourism (Xinhua/Wang Peng)

Visitors view blooming verbena flowers at an ecological garden on border of the Maowusu desert in Yinchuan, northwest China's Ningxia Hui Autonomous Region June 20, 2020. Efforts were made to turn desertification lands into the ecological garden in Yinchuan and ornamental plants are cultivated here as part of plans to promote local tourism (Xinhua/Wang Peng)

Photo taken on June 20, 2020 shows blooming verbena flowers at an ecological garden on border of the Maowusu desert in Yinchuan, northwest China's Ningxia Hui Autonomous Region. Efforts were made to turn desertification lands into the ecological garden in Yinchuan and ornamental plants are cultivated here as part of plans to promote local tourism (Xinhua/Wang Peng)

Photo taken on June 20, 2020 shows blooming verbena flowers at an ecological garden on border of the Maowusu desert in Yinchuan, northwest China's Ningxia Hui Autonomous Region. Efforts were made to turn desertification lands into the ecological garden in Yinchuan and ornamental plants are cultivated here as part of plans to promote local tourism (Xinhua/Wang Peng)

Photo taken on June 20, 2020 shows blooming verbena flowers at an ecological garden on border of the Maowusu desert in Yinchuan, northwest China's Ningxia Hui Autonomous Region. Efforts were made to turn desertification lands into the ecological garden in Yinchuan and ornamental plants are cultivated here as part of plans to promote local tourism (Xinhua/Wang Peng)

Photo taken on June 20, 2020 shows blooming verbena flowers at an ecological garden on border of the Maowusu desert in Yinchuan, northwest China's Ningxia Hui Autonomous Region. Efforts were made to turn desertification lands into the ecological garden in Yinchuan and ornamental plants are cultivated here as part of plans to promote local tourism (Xinhua/Wang Peng)

Visitors view blooming verbena flowers at an ecological garden on border of the Maowusu desert in Yinchuan, northwest China's Ningxia Hui Autonomous Region June 20, 2020. Efforts were made to turn desertification lands into the ecological garden in Yinchuan and ornamental plants are cultivated here as part of plans to promote local tourism (Xinhua/Wang Peng)

Photo taken on June 20, 2020 shows blooming verbena flowers at an ecological garden on border of the Maowusu desert in Yinchuan, northwest China's Ningxia Hui Autonomous Region. Efforts were made to turn desertification lands into the ecological garden in Yinchuan and ornamental plants are cultivated here as part of plans to promote local tourism (Xinhua/Wang Peng)