Geranium nodosum

RHS Plant Profile
knotted cranesbill
Plants for pollinators
Herbaceous Perennial

A sprawling perennial with glossy 3-lobed leaves and loose clusters of dark-veined, light pink flowers 2.5cm wide from late spring to early autumn

Position

Full shade, Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full shade Full sun Partial shade
Aspect
South–facing or North–facing or West–facing or East–facing
Exposure
Exposed or Sheltered
Hardiness
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

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
Correct
Plant Range
S Europe

How to Grow

Cultivation

Grow in any, moderately fertile soil apart from waterlogged soils. in full sun, partial shade or full shade. Has the potential to become a nuisance if sedlings not managed

Propagation

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

Suggested planting locations and garden types

  • Coastal
  • Cottage and informal garden
  • Wildlife gardens
  • Flower borders and beds
  • Banks and slopes
  • 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, geranium sawfly, slugs and snails

Diseases

May be susceptible to powdery mildews, downy mildews and a virus