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BulbsHerbaceous Perennial

Dierama robustum

robust wandflower

D. robustum is a cormous perennial to 1.5m forming a clump of tough, narrow, evergreen leaves. Tall, arching stems support hanging sprays of pale pink, bell-shaped flowers, with silvery bracts, in mid to late summer

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Grey Silver Pink Green
Autumn Green
Winter Green
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Iridaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Genus

Dierama are evergreen, clump-forming cormous perennials with long, narrow leaves and slender arching stems bearing nodding, bell-shaped flowers in summer

Name status

Correct

Plant range
S Africa, Lesotho

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How to grow

Cultivation

Grow in humus-rich, well-drained soil in a sheltered situation with full sun

Propagation

Propagate by seed in containers in a cold frame as soon as ripe or by division in spring. Young plants and divisions can be slow to establish

Suggested planting locations and garden types
  • Gravel garden
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Flower borders and beds
  • Banks and slopes
Pruning

Tidy any winter-damaged foliage by cutting to the base in spring

Pests

Generally trouble free

Diseases

Generally trouble free

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