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Tropaeolum speciosum AGM

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© RHS 2001

Characteristics

Plant type

Herbaceous Perennial or Climber/Wall Shrub

Habit

Climbing

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Red in Autumn and Summer

Foliage

Green in Autumn and Summer

Fruit

Red and Dark Blue in Autumn

Size

Ultimate height

2.5-4 metres

Ultimate spread

0.5-1 metres

Time to ultimate height

5-10 years


Preferred common name

flame nasturtium

Family

Tropaeolaceae


Tropaeolum can be annuals or perennials, bushy, trailing or climbing by twining stems, with simple or palmately lobed leaves and showy funnel-shaped flowers with five long-clawed petals and often a spur

T. speciosum is a slender herbaceous climber to 3m, with long fleshy rhizomes and rounded leaves composed of 5-7 obovate leaflets. Long-spurred, bright scarlet flowers 2cm in width are followed by indigo blue berries held in red sepals

Other common names

  • flame creeper
  • flame flower
  • flame Indian cress
  • Scottish flame flower

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

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

Cultivation

Thrives in gardens with cool, moist summers. Plant in cool, leafy or humus-rich soil where roots are in the shade with the plant growing into the sun or partial shade, can be grown up evergreen hedges

Soil

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

Propagation

Propagate by seed or division

Suggested planting locations and garden types

Wall-side Borders


How to care

Pruning

In early spring, cut the dead growth down to ground level

Pests

May be attacked by caterpillars, flea beetles and blackfly

Diseases

May be affected by a virus