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Canna 'Amundsen'

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© RHS 1999

Characteristics

Plant type

Conservatory/Greenhouse or Herbaceous Perennial

Habit

Bushy

Resilience

Hardiness

H3 (half hardy - unheated greenhouse/mild winter)

Colour

Flower

Red in Autumn and Summer

Foliage

Green in Autumn, Spring and Summer

Size

Ultimate height

1-1.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

canna 'Amundsen'

Family

Cannaceae


Canna are rhizomatous herbaceous perennials with erect stems bearing ovate leaves, with showy flowers with showy petal-like staminodes and small, coloured petals and sepals, borne in racemes or panicles in summer and autumn

'Amundsen' is a vigorous plant to 1.5m, with pale-edged, green foliage and shapely bright red flowers opening in late summer and autumn

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or West-facing
  • Sheltered

Cultivation

Needs a sheltered, warm site and plenty of watering. In autumn, rhizomes can be lifted and stored in a frost-free place or, in mild gardens leave them in the ground but cover with dry mulch.

Soil

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

Propagation

Propagate by division

Suggested planting locations and garden types

Architectural, City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds or Patio/Container Plants


How to care

Pruning

Leave to die back in autumn

Pests

Caterpillars, glasshouse red spider mite and aphids may be a problem

Diseases

May be affected by a virus