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Herbaceous Perennial

Geranium macrorrhizum 'White-Ness'
  • RHS AGM
  • RHS Plants for pollinators

big-root cranesbill 'White-Ness'

A robust, florifeous, evergreen, cultivar to 50cm, spreading to 110cm, with pure white flowers and neat pale green leaves giving a fresh appearance

Synonyms
Geranium macrorrhizum 'Mount Olympus'
Geranium macrorrhizum 'Mount Olympus White'
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Size
Ultimate height
0.1–0.5 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, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer White Green
Autumn Red Green
Winter
Position
  • Full shade
  • Full sun
  • Partial shade
Aspect

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

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Geraniaceae
Native to GB / Ireland
No
Foliage
Semi evergreen
Habit
Matforming
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

Useful as it is one of the few plants that can tolerate dry shade. Will grow in any, moderately fertile soil apart from waterlogged soils. Full sun or any type of shade

Propagation

Propagate by division in spring or propagate by basal cuttings in early to mid spring and root with bottom heat

Suggested planting locations and garden types
  • Cottage and informal garden
  • Gravel garden
  • Wildlife gardens
  • Underplanting of roses and shrubs
  • Flower borders and beds
  • Ground cover
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 sawflies

Diseases

May be susceptible to a downy mildew and powdery mildews

Get involved

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