What a wonderful way to show off potted herb plants or flowers- a "tree" that holds twenty small pots on an exterior wall. Creative Ideas- plants to decorate your home and garden" via Lucid Life (article is written in Spanish)
Use an old pallet to make a vertical herb garden! Cheap, easy and beautiful! Just make sure to find out how the pallet was treated so you're not planting in harmful chemicals! And- u can write the name of the herbs on the wood!