Over the years, Wang Jianwen has seen rising demand for arable land in Shenzhen's business areas.

Her company Seeds House has been offering garden construction services for businesses and science parks since 2017.

"Many of our clients have asked for farmable land to be added to their company property, because they want their tenants to have a sense of belonging in the workplace," Wang says.

"Some of these green spaces have been expanding with new species," she adds.

Wang's company offers seeds and technical support for maintenance of these urban farms.

She sees potential in the concept's development.

"It's impossible to do pure agriculture in the city, so it has to be integrated with existing architecture or through another approach," Wang explains.

There's still space available at Huang's building.

She says that she looks forward to seeing more people joining in and exploring the fun of pastoral life together.

In addition to spicing up her life in the city, the rooftop farm has also surprisingly shortened the distance between Huang and her family back in her rural hometown.

"Whenever I call my mom and ask questions about vegetable growing, she is more thrilled than me," Huang says.

"I figure she loves sharing what she knows with me, like what to grow in different seasons, and we feel much closer to each other."