Marshmallow Plant

Marshmallow plant (Althaea officinalis) is a perennial herb and the original source of the flavor behind the ancient confection that inspired today's marshmallows. Both roots and leaves are edible, and the roots yield the traditional marshmallow extract used in homemade sweets.

At a glance

• Botanical name: Althaea officinalis
• Type: Heirloom perennial herb, open-pollinated, non-GMO
• Hardiness: Zones 3 to 9
• Sun: Full sun to partial shade
• Edible parts: Roots and leaves
• Use: Culinary, medicinal, pollinator planting

Best for

• Homemade marshmallow and confections
• Herbal and medicinal gardens
• Cooked greens, fried with onion and garlic
• Perennial borders and cottage gardens
• Attracting pollinators

How to grow

Sow seeds in spring after the last frost, or start indoors and transplant. Plants prefer moist, well-drained soil in full sun to partial shade and return year after year in zones 3 to 9. Harvest roots in autumn once established.

Flavor profile

Mild and subtly sweet with a soft, mucilaginous texture in the roots that gives the classic marshmallow character.

About MIgardener

MIgardener is a Michigan-based family company offering affordable, non-GMO heirloom seeds and gardening supplies, with a mission to make growing your own food simple and accessible.