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Herbaceous Perennial

Geranium phaeum 'Raven'
  • RHS Plants for pollinators

dusky cranesbill 'Raven'

'Raven' is a clump-forming herbaceous perennial, to 75cm high, with deciduous, lobed, green leaves and reflexed, dark purple flowers, 2-2.5cm across, from late spring to early summer

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Purple Green
Summer Purple Green
Autumn Green
Winter
Position
  • Full shade
  • Full sun
  • Partial shade
Aspect

North–facing or South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Geraniaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

Geranium can be annuals, biennials and perennials, herbaceous or evergreen, with rounded, usually palmately lobed or divided leaves, and lax inflorescences of rounded, 5-petalled flowers

Name status

Accepted

How to grow

Cultivation

Grow in sun or shade in moist but well-drained soil; good in damp shade

Propagation

Propagate by division in spring, or by basal softwood cuttings taken in spring and rooted with bottom heat

Suggested planting locations and garden types
  • Cottage and informal garden
  • Wildlife gardens
  • Low Maintenance
  • Flower borders and beds
  • Underplanting of roses and shrubs
Pruning

Cut back flowered stems and old leaves to encourage fresh growth

Pests

May be affected by capsid bug, geranium sawfly, vine weevil, slugs and snails

Diseases

A rust, downy mildews, leafy gall and a virus may be troublesome. Powdery mildews can be a problem in dry conditions

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