Rose mallow is a bold Missouri native perennial that commands attention from midsummer through fall. This vigorous plant grows 4 to 6 feet tall, producing spectacular hollyhock-like flowers in white or rose with striking magenta-crimson eyes, each bloom reaching 4 to 6 inches across. Hardy in zones 5 through 9, it thrives in wet soils and full sun, making it invaluable for gardeners with poorly drained spots or rain gardens. The plant tolerates summer heat and humidity while attracting butterflies throughout its long blooming season from July through October.
24
Full Sun
Moderate
5-9
84in H x 36in W
—
High
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Rose mallow's showy 5-petaled flowers with their dramatic magenta-crimson centers appear continuously in the upper leaf axils from mid-summer onward, creating an almost shrubby presence in the garden. This native perennial actually improves in wet conditions that would challenge most ornamentals, making it a rare plant that genuinely solves drainage problems rather than just tolerating them. Deer leave it completely alone, and its nectar and pollen draw butterflies reliably each season.
Rose mallow serves as a distinctive flowering shrub in rain gardens and water gardens, where its tolerance for standing water and continuous moisture makes it far more practical than typical landscape plants. Its tall stature and showy blooms render it valuable as a specimen planting or background element in perennial borders designed around wet-soil conditions. The plant's attraction to butterflies and other pollinators gives it ecological value beyond its ornamental appeal.
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“Rose mallow is a Missouri native that typically occurs in wet soils along ponds and sloughs, in ditches and wet woods, where it sometimes forms large colonies. Indigenous to the central United States, this perennial has occupied these wet habitats for generations, quietly persisting in marshy ground where fewer plants can survive. Its persistent presence in native plant lists and botanical gardens reflects growing recognition of its ecological value and ornamental merit.”