Campanula 'Royal Wave'

RHS Plant Profile
bellflower 'Royal Wave'
Alpine Rockery Herbaceous Perennial

A mat-forming perennial with small green leaves forming a low mound. Large, upward-facing cup-shaped violet-blue flowers with white centres appear in succession over a long flowering period, and are amazingly fragrant. Because this variety is sterile, flowering continues for many weeks with no deadheading required

Position

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
1–2 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 sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered
Hardiness
H7

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Campanulaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming, Matforming
Genus
Campanula may be annuals, herbaceous or evergreen perennials, with bell or star-shaped, often blue, flowers in late spring or summer
Name Status
Unresolved

How to Grow

Cultivation

Grows in light, fertile, loose, humus-bearing and well-drained soil, even limestone. Performs best in light partial shade, out of direct sunlight which may scorch the plant. Shelter from strong winds

Propagation

Propagate by division in spring or autumn

Suggested planting locations and garden types

  • Hanging Basket
  • Patio and container plants
  • Rock garden
  • Low Maintenance
  • Banks and slopes
  • Bedding
  • Flower borders and beds
  • Garden edging
  • Ground cover

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to rust diseases