marsh mallow

Althaea officinalis

PerennialMalvaceae

marsh mallow
USDA zones3 to 9
SunNeeds full sun (6+ hours)
Size3 to 6 feet tall2.5 to 4 feet wide
Bloom season
Summer, autumn
Bloom color
Pale pink

Notes

Marsh mallow (Althaea officinalis) is a perennial for borders, cottage gardens, and back-of-the-bed color. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full sun. It grows 36 to 72 inches tall and spreads 30 to 48 inches, so give it room. Pale pink flowers open from mid to late summer and into early autumn.

Pairs well with Pincushion flower, Blonde Ambition blue grama, and Immortality iris.

Native range

Asia and Europe.