This would be a great way to grow peppermint! As many have found out the hard way, once peppermint takes root in your yard or garden, it can grow like crazy and you'll never get rid of it. This would prevent that from happening.
You could also make a hanging flower garden on the side of your house or garage. What a fun project!
my husband got rid of all my peppermint, by mowing it weekly. it took two years, and I'm sad but he did it. I'll try something like this. he can't "accidentally" mow a vertical herb garden. LOL
I really like this idea. We are currently renters in a suburban neighborhood, so this would allow some gardening without altering the property. I love it.
You could also make a hanging flower garden on the side of your house or garage. What a fun project!