Gardening is one of the fastest growing--and greenest--activities, and now you can even do it on the move. At least in theory. A growing number of artists, activists and DIY hobbyists are experimenting with mobile gardens, with the goal of transforming our urban spaces (and producing some tomatoes or pansies along the way).
Luckily, nature is resilient, and many plants don't need much to take root, just a little space, moisture, drainage and sunlight. Mobile gardening is essentially container gardening, with a few extra challenges and a dose of creativity. Read on to see what's sprouting up in unlikely places around the world.