• AGM plants

    AGM plants have been through a rigourous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Aristolochia littoralis

Calico flower

Calico flower

© � RHS

  • Other common names Calico flower

  • Genus 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

  • Family Aristolochiaceae / Aristolochiaceae

  • Species 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

  • Plant range S America, naturalized C America, S United States


  • Foliage Evergreen

  • Habit Climbing



  • Partial Shade

  • Full Sun

  • Aspect West-facing or East-facing or North-facing

  • Exposure Sheltered


  • Chalk


  • MoistureMoist but well-drained

  • SoilLoam

  • pHNeutral


  • Ultimate height

    4-8 metres

  • Ultimate spread

    2.5-4 metres

  • Time to ultimate height

    5-10 years

How to grow

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.

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

Pruning Pruning group 11

Pests Generally trouble free

Diseases Generally trouble free

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