grassy-leaved sweet flag

Acorus gramineus

PerennialAcoraceae

grassy-leaved sweet flag
USDA zones6 to 9
SunHandles full sun to partial sun
WaterHandles moderate or wet soil
Size6 to 12 inches tall6 to 12 inches wide
Growth rate
Moderate
Habit
Arching
Bloom season
Spring, summer
Bloom color
Yellow-green
Foliage color
Green
Soil types
Sand, loam, clay

Garden uses

AccentBorderContainerGround coverNaturalizedRain garden

Notes

Grassy-leaved sweet flag (Acorus gramineus) is a perennial for borders, containers, rain gardens, and naturalized areas. It is hardy to USDA zone 6, or down to -10°F (-23°C). This plant likes full or part sun and average to wet, sandy, loamy, or clay soil. It forms an arching clump of green leaves that stays 6 to 12 inches tall and wide. Small yellow-green flowers appear in spring and again in summer.

Pairs well with Sedge, Ostrich fern, Meadowsweet, and Chokeberry.

Native range

Eastern Asia.

More perennials by zone