The Auxano by Philip Houiellebecq is a hanging garden designed for urban dwellers who want to grow produce but have limited space.
It's a bittersweet situation when it comes to living in a busy city because you're set in the heart of town but there's no room for a garden or terrace. With the Auxano, individuals are able to grow all their favorite herbs and vegetables without using soil or water. This concept design uses tubes and a nutrient reservoir to effectively grow healthy plants.
Houiellebecq designs soilless systems where the roots hang within the tube. Instead of watering, users are to press a pump a few times a day, which gushes a flow of oxygen and other nutrients from underneath the plant. The whole design can be hoisted on to a wall that provides food while saving space.