About

Calamagrostis x acutiflora 'Waldenbuch' is a deciduous perennial grass that forms clumps and gradually spreads, reaching a height of approximately 1.2 meters. It features glossy, mid-green leaves that arch gracefully. In mid to late summer, the plant produces airy, plume-like inflorescences in soft shades of pale purple-brown, which remain decorative through the winter months.

About the genus

Calamagrostis consists of sturdy perennial grasses that spread through rhizomes, producing clumps of narrow leaves. During the summer, upright stems develop dense, branched flowering panicles.

Growing conditions

Sunlight
Full sun, Partial shade
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained, Well-drained
Aspect
South-facing, West-facing, East-facing, North-facing
Exposure
Exposed, Sheltered
UK hardiness
H6

Plant details

Plant type
Grass Like
Habit
Clump forming
Foliage
Deciduous
Height
1-1.5 metres
Spread
1-1.5 metres
Time to full height
2-5 years
Suggested uses
Coastal, Cottage and informal garden, Gravel garden, Wildlife gardens

Care notes

Cultivation
Tolerant of a range of conditions but best in moisture retentive well-drained soil with full sun or part shade
Pruning
Cut back old stems to the ground in early spring before growth resumes
Propagation
Propagate by division in mid-spring
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free