Aruncus dioicus 'Whirlwind'
A large, clump-forming perennial valued for its bold foliage and tall, plume-like white flowers in early summer. ‘Whirlwind’ develops into a substantial plant, best suited to moisture-retentive soils at the margins of woodland or in generous borders. Given adequate space and moisture, it forms a durable, long-lived presence rather than a compact accent.
Growing Conditions
Light: part shade
Moisture: moist
Soil: moisture-retentive; fertile garden soils
Hardiness zone: 4
Maintenance: low
Size & Habit
Height (cm): 150
Spread (cm): 120
Habit: large clump
Seasonal Interest
Flowering period: June–July
Seasonal interest: early summer flowering; strong foliage presence
Foliage: green
Flower: white
Ecology & Notes
Wildlife value: pollinators
Deer/Rabbit resistance: yes
Habitat: perennial borders; woodland margins; moisture-retentive sites
Features: large plume-like flowers; bold foliage mass; early summer flowering
Notes: produces large, upright plumes in early summer; requires space and consistent moisture to perform well; distinct from compact hybrids such as Kneiffii selections