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Passiflora caerulea AGM

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© Christopher Whitehouse

Characteristics

Plant type

Climber/Wall Shrub

Habit

Climbing

Toxicity

Ingestion may cause severe discomfort

Resilience

Hardiness

H4 (hardy - average winter)

Colour

Flower

Blue, Purple and White in Autumn and Summer

Foliage

Dark Green in Autumn, Spring, Summer and Winter

Fruit

Orange in Autumn and Winter

Size

Ultimate height

8-12 metres

Ultimate spread

2.5-4 metres

Time to ultimate height

5-10 years


Preferred common name

blue passion flower

Family

Passifloraceae


Passiflora are mostly tender tendril-climbing shrubs, with simple or palmately-lobed, generally evergreen leaves and showy flowers of distinctive structure with often colourful coronal filaments, followed by conspicuous fruits, edible in some species

P. caerulea is a vigorous large deciduous or semi-evergreen climber with twining tendrils. Leaves dark green, with 5-7 finger-like lobes. Flowers to 8cm in width, white, with blue and purple coronal filaments. Fruits ovoid, 4cm, orange

Other common names

  • blue crown
  • common passion flower
  • flower of five wounds
  • southern beauty
  • wild apricot

Synonym(s)

  • Passiflora chinensis
  • Passiflora mayana

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing or West-facing
  • Sheltered

Cultivation

Fast-growing climber for sun or partial shade, thrives in moist but well-drained soil. In cold areas, grow in a container and overwinter indoors

Soil

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

Propagation

Propagate by seed, semi-hardwood cuttings or by layering in spring or autumn

Suggested planting locations and garden types

City/Courtyard Gardens, Patio/Container Plants or Wall-side Borders


How to care

Pruning

Pruning group 11 or pruning group 12 if necessary, in early spring

Pests

glasshouse red spider mite, glasshouse whitefly, mealybugs and scale insects may be a problem under glass

Diseases

May be subject to a virus