Marshmallow (Althaea officinalis) is a stately, quietly beautiful perennial - soft, velvety grey-green leaves on upright stems reaching 4-6 feet tall, with pale pink to white hollyhock-like flowers that bloom through summer. Every part of the plant is mucilaginous - touch a leaf, peel a stem, or chew a piece of root and the characteristic slippery, coating quality is immediately apparent. This is the defining botanical signature of a plant that has been central to the herbal tradition for thousands of years. The original marshmallow confection was made from the whipped root of this plant.

Growing Information
Marshmallow thrives in full sun and moist, fertile, deep soil - it develops a substantial taproot and benefits from deep, loose soil that the root can penetrate freely. It tolerates a range of conditions but performs best with consistent moisture. Plants reach 4-6 feet tall and make a dramatic back-of-border specimen. Cut back after flowering to tidy the plant. Hardy throughout most of North America. The root is harvested in fall of the second or subsequent years when the mucilage content is highest.

Traditional Use
Marshmallow has been used in medicine since ancient Egypt - it appears in the Ebers Papyrus and was cultivated by ancient Greek and Roman physicians. It has been continuously valued in European herbal tradition through the present day, with the root, leaves, and flowers all recognized as having distinct applications. The root's extraordinary mucilage content - up to 35% by dry weight - has made it one of the most important soothing herbs in both Western and Middle Eastern folk medicine. Contemporary herbalists value marshmallow root primarily for its mucilaginous, coating properties in the digestive and respiratory traditions.

Care on Arrival
Water well upon arrival and keep consistently moist - marshmallow does not like to dry out. Settle in a bright, sunny location for a day before transplanting. Plant after your last frost date in deep, moist, enriched soil. Loosen the soil deeply to allow the taproot to develop freely. Mulch generously to retain moisture. Water consistently through the first season. First-year plants establish their root system; full size and flowering comes in year two. A deeply rewarding plant for those with the right conditions.

You Might Also Like
Marshmallow is a foundational mucilaginous herb and pairs naturally with Comfrey and Self Heal in a soothing, tissue-supportive herb collection. Elecampane shares its preference for deep, moist soil and its place in the respiratory herb tradition. For a complete collection of plants valued for soothing properties in folk tradition, add Chamomile and Lemon Balm.

At Zenobia's Garden, every plant is grown on our 8-acre farm in Perry County, Missouri - tended by hand with attention to soil health, plant vitality, and botanical integrity. We grow medicinal herbs because we believe in them, and we want the plants that leave our farm to thrive in yours. Questions about your order or your plants? Reach us at susan@zenobiasgarden.com - we're growers first, and we're happy to help.