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Campanula portenschlagiana
  • RHS AGM

wall bellflower

C. portenschlagiana is a low-growing perennial quickly forming an evergreen mat of small, rounded leaves. Bell-shaped violet-blue flowers 2cm in length borne freely on branching stems to 20cm in height, in summer

Other common names
Adria bellflower
Synonyms
Campanula muralis

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Purple Green
Autumn Green
Winter Green
Position
  • Full sun
  • Partial shade
Aspect

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

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Campanulaceae
Native to the UK
No
Foliage
Evergreen
Habit
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

Correct

Plant range
S Europe

How to grow

Cultivation

Ideal for rock gardens or sunny borders. Will not tolerate wet winters

Propagation

Propagate by seed or basal cuttings

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Gravel garden
  • Patio and container plants
  • Rock garden
  • Garden edging
  • Ground cover
Pruning

No pruning required

Pests

May be damaged by slugs and snails

Diseases

May be infected by a rust, powdery mildews and a leaf spot

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