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Herbaceous Perennial

Geranium nodosum 'Silverwood'
  • RHS Plants for pollinators

knotted cranesbill 'Silverwood'

A spreading, rhizomatous perennial, to 45cm in height and spread, with palmate, glossy leaves and delicate, cup-shaped, white flowers, 3-4cm across, in spring and summer

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring White Green
Summer White Green
Autumn Green
Winter
Position
  • Full shade
  • Full sun
  • Partial shade
Aspect

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

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Geraniaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy
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

Grows, and flowers, best in full sun or partial shade, though it is tolerant of shade

Propagation

Propagate by seed, basal cuttings or division

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

Remove flowered stems and old leaves to encourage the production of fresh leaves and flowers

Pests

May be susceptible to vine weevil, capsid bug and geranium sawfly

Diseases

May be affected by a downy mildew and powdery mildews

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