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Crossandra infundibuliformis AGM

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© RHS 2002

Characteristics

Plant type

Conservatory/Greenhouse or Houseplant

Habit

Bushy

Resilience

Hardiness

H1a (heated greenhouse - tropical)

Colour

Flower

Orange and Red in Autumn, Spring and Summer

Foliage

Green in Autumn, Spring, Summer and Winter

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

5-10 years


Preferred common name

firecracker flower

Family

Acanthaceae


Crossandra are evergreen perennials or shrubs with paired or whorled lance-shaped leaves and cone-like terminal flower spikes with prominent bracts and salver-shaped flowers

C. infundibuliformis is an erect evergreen sub-shrub with lance-shaped leaves and yellow or orange-red flowers 3cm across in a dense cone-like spike, borne from spring to autumn

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or West-facing
  • Sheltered

Cultivation

Grow outdoors in well-drained soil in a very warm frost-free area. Grow under glass in loam-less or loam-based compost in full light from autumn to spring and filtered light in summer. Pinch out growing points when young to encourage bushy growth

Soil

  • Well-drained
  • Acid, Alkaline or Neutral
  • Chalk, Clay, Sand or Loam

Propagation

Propagate by seed and semi-hardwood cuttings

Suggested planting locations and garden types

Sub-tropical or Patio/Container Plants


How to care

Pruning

Pruning group 8

Pests

Generally pest free

Diseases

Generally disease free