Have no idea if the pic is from China, but during a trip there, I saw people growing vegetables in the most incredible ways, lots of apartments with plastic bucket gardens and such. My favorite was this hutong courtyard building where we did a cooking class as a tourist thing—the courtyard had a trellis over it for sun blocking, but the trellis was grown out by a bunch of different types of squash—such a neat combo because the squash leaves were great at max blocking direct sun, and there were all these perfectly spherical squash hanging overhead. The cook grabbed one off a vine during the class for the recipe we were making. Have wanted to try that method ever since.