Skip to site navigation

Geranium Rozanne 'Gerwat' PBR AGM

Home  |  Plants > Plant Selector > Geranium Rozanne 'Gerwat' PBR AGM

© RHS

Characteristics

Plant type

Herbaceous Perennial

Habit

Bushy

Resilience

Hardiness

H7 (very hardy)

Colour

Flower

Blue and White in Autumn and Summer

Foliage

Green in Autumn, Spring and Summer

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.5-1 metres

Time to ultimate height

2-5 years


Preferred common name

geranium [Rozanne]

Family

Geraniaceae


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

Rozanne is a vigorous spreading perennial to 60cm tall, with neat, dense, lobed foliage and bowl-shaped violet-blue flowers 5cm wide, with a white centre, opening from early summer to early autumn. Shortlisted for the Chelsea Plant of the Centenary for the decade 1993-2002, and winner of the public vote

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing, North-facing, West-facing or East-facing
  • Exposed or Sheltered

Cultivation

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

Soil

  • Well-drained or Moist but well-drained
  • Acid, Alkaline or Neutral
  • Sand, Clay, Chalk or Loam

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/Informal Garden, Flower borders and beds, Gravel Garden, Ground Cover or Underplanting of Roses and Shrubs


How to care

Pruning

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

Pests

Can get vine weevil, capsid bug and sawflies

Diseases

May be affected by a downy mildew and powdery mildews