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Darlingtonia californica AGM

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© RHS

Characteristics

Plant type

Herbaceous Perennial or Conservatory/Greenhouse

Habit

Bushy

Resilience

Hardiness

H3 (half hardy - unheated greenhouse/mild winter)

Colour

Flower

Green, Purple and Yellow in Spring

Foliage

Green and Red in Autumn, Spring and Summer

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

Californian pitcher plant

Family

Sarraceniaceae


Darlingtonia are carnivorous perennials with several pitcher-like leaves hooded at the top, and solitary, nodding flowers in spring

D. californica is a perennial to 40cm, forming a rosette of trumpet-shaped leaves with the red-veined top folded over to form a hood with a reddish appendage. Flowers 6cm across, bell-shaped, with narrow yellowish-green sepals surrounding heavily purple-veined petals

Other common names

  • cobra flower
  • cobra lily

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or East-facing
  • Sheltered

Cultivation

Grow under glass in full light with shelter from hot sun. In winter keep moist, cool and well ventilated. Grow outdoors in moist but sharply drained acid soil in full sun. Irrigate with lime-free water

Soil

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

Propagation

Propagate by seed

Suggested planting locations and garden types

Patio/Container Plants


How to care

Pruning

No pruning required

Pests

May be attacked by scale insects, mealybugs, aphids and tortrix moth

Diseases

Generally disease free