Geranium wallichianum Havana Blues ('Noorthava'PBR)

RHS Plant Profile
cranesbill [Havana Blues]

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cranesbill [Havana Blues] RHS
cranesbill [Havana Blues] RHS
cranesbill [Havana Blues] RHS

Synonyms

Geranium wallichianum 'Noorthava'PBR
Geranium wallichianum 'Havana Blues'

Plants for pollinators
Herbaceous Perennial
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a low, spreading herbaceous perennial, to 40cm in height, with trailing stems bearing 5-lobed leaves and saucer-shaped, light violet-blue flowers, 4-5cm in width, with a white central zone and magenta veins

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 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 sun Partial shade
Aspect
North–facing or East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Geraniaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Trailing
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
Trade

How to Grow

Cultivation

Grow in any moderately fertile soil apart from waterlogged soils. Full sun or partial shade is best but shade is tolerated

Propagation

Propagate by seed sown in pots outdoors as soon as ripe or in spring. 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
  • 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 susceptble to vine weevil, capsid bug and sawflies

Diseases

May be susceptible to downy mildews and powdery mildews