About Marshmallow. Marshmallow's genus Althaea is derived from the Greek word, atho, meaning to cure. This herb has been used for centuries. It was advocated by Hippocrates for its virtues, and it has long been used as a food in times of famine. Native to Europe, Marshmallow grows in wet soils. Its roots are harvested in the autumn. Marshmallow has many uses and a good reference book is helpful. It is commonly used as a tea, poultice, syrup, ointment, gargle, capsule or wash. It all starts with the herbs. Celebration Herbals is dedicated to bringing you the best tasting teas, grown and processed as close to the way nature intended as possible and never irradiated. These herbs are grown and harvested with the highest standards of quality control. You can trust these new special designations - Certified Organic, Ethically Wildcrafted, and Pure Quality.