Spearmint 2 oz by Quantum Herbal Products. Save 88 Off!. $2.79. 2 Ounces Liquid. Spearmint is edible and Medicinal, the leaves and flowers are edible raw or cooked. A strong flavor, they are used in salads or added to cooked foods. A medicinal herb tea made from the fresh or dried leaves has a very pleasant and refreshing taste, leaving the mouth and digestive system feeling clean. Also great for mint jelly, an old favorite.