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Passiflora racemosa AGM

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© RHS 1990

Characteristics

Plant type

Climber/Wall Shrub or Conservatory/Greenhouse

Habit

Climbing

Resilience

Hardiness

H1b (heated greenhouse - subtropical)

Colour

Flower

Red in Summer

Foliage

Green in Autumn, Spring, Summer and Winter

Fruit

Green in Autumn

Size

Ultimate height

4-8 metres

Ultimate spread

0.5-1 metres

Time to ultimate height

5-10 years


Preferred common name

red 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. racemosa is an evergreen climber to 5m, with 3-lobed leaves and pendent racemes of crimson flowers to 12cm across, with dark purple and white coronal filaments followed by pale green fruits

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing or East-facing
  • Sheltered

Cultivation

Under glass grow in loam-based potting compost in full light with shade from hot sun. Water freely when in growth and keep just moist in winter. May be grown outdoors in most fertile, moist but well-drained soils. Provide support for climbing stems and shelter from cold, drying winds

Soil

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

Propagation

Propagate by seed sown at 13 to 18 °C in spring or root semi-hardwood cuttings in summer. Layering can be carried out in spring or autumn

Suggested planting locations and garden types

Patio/Container Plants or Wall-side Borders


How to care

Pruning

Pruning group 11 or pruning group 12 in early spring

Pests

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

Diseases

Generally disease free