Campanula portenschlagiana [Ambella Intens Purple] ('Ptdb141301')

RHS Plant Profile
wall bellflower [Ambella Intens Purple]

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Synonyms

Campanula portenschlagiana 'Ptdb141301'

Plants for pollinators
Alpine Rockery Herbaceous Perennial
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A compact, mat-forming evergreen perennial with pale green, heart-shaped leaves. Masses of vibrant, violet-blue bell-shaped flowers appear from March to July

Position

Full sun, Partial shade

Soil Types

Chalk, 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 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 South–facing or East–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)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Campanulaceae
Native to GB/Ireland
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
Trade

How to Grow

Cultivation

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

Propagation

Propagate from basal cuttings

Suggested planting locations and garden types

  • Patio and container plants
  • Gravel garden
  • Wildlife gardens
  • Flower borders and beds
  • Ground cover
  • Underplanting of roses and shrubs

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to leaf spot, powdery mildew and rust