An aerial view shows the colorful landscape of the chrysanthemum base at Nanjing Agricultural University on October 17, 2019. /VCG Photo

Covering an area of more than 120 acres, the base currently preserves more than 3,000 varieties of chrysanthemum and is a resource conservation center as well as the gene pool for chrysanthemums. /VCG Photo

The flower base is also open to the public. /VCG Photo