Peppermint is a hybrid perennial plant that grows 1-3 feet tall with dark green leaves and purple flowers. It is native to Europe but naturalized in North America, where it grows in most areas as long as it has access to water and good drainage. Peppermint has a long history of medicinal uses for treating various ailments like coughs, nausea, headaches, and skin irritation due to its high menthol content, which has soothing and cooling properties.