Visitors take pictures in the expo’s Botanic Garden. Photo: Caixin

British landscape architect Thomas Hill’s “Origami Garden” at the expo. Photo: Caixin

Giraffes made from twining branches populate the expo’s Botanic Garden. Photo: Caixin

Four ant sculptures stand on a trunk. Photo: Caixin

Horse-shaped topiaries at the expo. Photo: Caixin

A lake in the Guangdong provincial pavilion area. Photo: Caixin

A potted pine sits inside an arching sculpture in the Hubei provincial pavilion area. Photo: Caixin

Decorative potted plants and flowers hang from the roof in the expo’s Botanic Garden. Photo: Caixin

Peonies, a favorite flower of China, grow at the expo. Photo: Caixin

The expo’s exit at night. Photo: Caixin