Vertical gardening or vertical farming is cultivating plant life on a vertically inclined surface. It is not a new concept having been employed in ancient Babylon, however for someone with a limited footprint taking this techinque into the modern.
Good for flower bed- Lay down a thick layer of CARDBOARD in your raised garden beds to kill the grass. It is perfectly safe to use and will fully decompose, but not before killing any grass below it. They’ll also provide compost and food for worms.