Marshmallow (Althaea officinalis) is an extremely valuable and easy-to-grow medicinal plant. Marshmallow root is demulcent - it sooths irritated mucus membranes in the digestive tract and lungs, and gives relief to sore throat. It is also mildly stimulating to the immune system. The leaves and flowers are used similarly, but are considered to be less medicinally potent. As an added bonus, Marshmallow is a stunning beauty in the garden...growing to 5-6 feet tall in fertile soil, with abundant pink & white flowers that bees love. Every medicinal herb garden should not be without Marshmallow! Perennial