Shanghai is one of the four direct-controlled municipalities of China and the most populous city in the world, with a population of more than 24 million as of 2017. It is a global financial centre and transport hub, with the world's busiest container port.
Dozens of bike-share companies quickly flooding city streets with millions of brightly colored rental bicycles. However, the rapid growth vastly outpaced immediate demand and overwhelmed Chinese cities, where infrastructure and regulations were not prepared to handle a sudden flood of millions of shared bicycles.
those are bikes, not flower fields.
and these have become a permanent part of the junk yard, with vines overgrowing the thousands of bikes that have been there a year or more