The Marshmallow Herb

Marshmallow has a rich history of use, dating back over 2,000 years, though its medicinal and culinary applications likely extend far beyond that. Revered for its healing properties, its genus name, Althaea, comes from the Greek word "altho," meaning "to cure," reflecting its significance in ancient healing traditions.

One of marshmallow’s key qualities is its demulcent action—soothing, cooling, and moistening—which is most effective for relieving irritation and dryness in the throat, lungs, digestive system, and urinary tract. The herb’s slimy texture, similar to fresh aloe on sunburn, makes it especially helpful for inflamed tissues. Demulcent herbs, like marshmallow, are rich in polysaccharides, which become thick and viscous in water. This quality is what allows them to soothe hot and inflamed tissues, such as those affected by ulcers, burns, or dry coughs.

Marshmallow is particularly beneficial for addressing inflammation caused by dryness. Unlike treatments that suppress inflammation, demulcent herbs help reverse the underlying dryness, offering a more holistic approach. It's often used by herbalists for conditions like cystitis, kidney stones, and UTIs, thanks to its dual role as a demulcent and diuretic.

The plant itself, Althaea officinalis, originates from central Asia but is now grown worldwide, thriving in marshy environments. It's a perennial plant that grows up to 3-5 feet tall, with heart-shaped, soft-haired leaves and pinkish-white flowers. Both the leaves and roots are harvested for medicinal use—the leaves in late summer and the roots in fall from older plants.

The Marshmallow Herb for the Cold and Flu Season

In modern herbalism, marshmallow is also prized for its ability to soothe cold and flu symptoms, especially for dry, irritated lungs and sore throats. Recent studies have confirmed its effectiveness in treating dry coughs and stimulating the immune system by promoting phagocytosis, where immune cells eliminate pathogens and debris.

The Marshmallow Herb for Digestive Inflammation

Marshmallow’s uses extend beyond respiratory health. It's commonly included in protocols for digestive inflammation, such as ulcers and colitis, where it helps soothe irritation and promote healing. Its topical applications are equally notable—historically used to prevent gangrene, modern research highlights its antimicrobial properties and ability to soothe burns, rashes, and even breast engorgement.

For those interested in trying marshmallow root, a simple cold infusion preserves its demulcent properties. Soak an ounce of marshmallow root in two cups of room-temperature water for a few hours or overnight to create a soothing tea that can be used for a variety of ailments.

Whether it's for respiratory, digestive, urinary, or skin health, marshmallow remains a powerful and versatile herb with centuries of proven benefits.

Identifying Marshmallow Herb

Marshmallow (Althaea officinalis) originates from Central Asia but grows worldwide, thriving in salt marshes and gardens alike. This perennial plant reaches 3-5 feet tall, dying back in the fall and returning each spring.

The flowers are pinkish or white with five petals and numerous stamens forming a distinct column around the pistil. Studies show that the white flowers have higher antioxidant levels than the pink ones.

The heart-shaped leaves have irregular serrations and soft hairs. Harvest leaves and flowers in late summer to early fall, cutting stems about a foot above the ground. Depending on the season, the plant may yield a second leaf harvest.

The pale yellow roots are long, tapered, and thick. Harvest them in the fall from second or third-year plants, chop them fresh, and dry. Note that older plants may have tough, woody roots.

Marshmallow is generally safe for everyone, but should be taken several hours apart from prescription medications to avoid interference with absorption. It’s best avoided in conditions that are already cold and moist.