Here is another great idea for stacking your plants and herbs on top of one another. Its actually pretty easy to do all you really need to do is the following:
1. Get 5 pots or containers all different sizes
2. Paint your containers the way you like them
3. Plant your plants or herbs in your containers
4. Use your chalkboard paint markers to indicate that is growing in that pot
5. Stack your plant or herb garden and you are all done!
Refer to the following photo tutorial for more details.