For several years running, French artist Christophe Guinet — aka Mr. Plant — has transformed Nike shoes into a series of organic sculptures called, naturally, Just Grow It.

The assorted sneakers are adorned with flowers, grass, bark, and other plant parts. Or they act as pots, out of which poppies, dandelions, or bonsai trees grow. 

“People spend hours looking in shop windows,” he says. “I hope with my shoes, they will watch a seed, a flower with the same attention.” Think of it as art cross-pollinated with recycling.