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Aristolochia littoralis

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© RHS

Characteristics

Plant type

Climber/Wall Shrub or Conservatory/Greenhouse

Habit

Climbing

Resilience

Hardiness

old H1 (requires heated greenhouse/indoors)

Colour

Flower

Brown and Cream in Summer

Foliage

Grey/Silver in Autumn, Spring, Summer and Winter

Size

Ultimate height

4-8 metres

Ultimate spread

2.5-4 metres

Time to ultimate height

5-10 years


Preferred common name

calico flower

Family

Aristolochiaceae


Aristolochia can be shrubs or herbaceous perennials, many climbing, usually with heart-shaped or ovate leaves. Distinctive flowers have an S-shaped calyx tube and no petals, and are may be white, yellow, brown or maroon, often mottled

A. littoralis is an evergreen climber with twining stems bearing broadly heart-shaped, greyish leaves and curiously shaped, brownish-purple flowers 10cm long, heavily veined with creamy-white

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • West-facing, East-facing or North-facing
  • Sheltered

Cultivation

Under glass grow in loamless potting compost in bright filtered light. During the growing season water freely and apply a balanced liquid fertiliser monthly; water more sparingly in winter.

Soil

  • Moist but well-drained
  • Neutral
  • Loam

Propagation

Root softwood cuttings in early spring. Propagate by seed at 21-24°C (70-75°F) as soon as ripe or in spring.

Suggested planting locations and garden types

Wall-side Borders


How to care

Pests

Generally trouble free

Diseases

Generally trouble free