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Angelica gigas

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© RHS 2002

Characteristics

Plant type

Herbaceous Perennial or Annual/Biennial

Habit

Columnar/Upright

Resilience

Hardiness

old H4 (hardy)

Colour

Flower

Dark Purple in Autumn and Summer

Foliage

Green in Autumn, Spring and Summer

Stem

Dark Purple in Autumn, Spring and Summer

Size

Ultimate height

1.5-2.5 metres

Ultimate spread

1-1.5 metres

Time to ultimate height

2-5 years


Preferred common name

purple angelica

Family

Apiaceae


Angelica are large biennials or herbaceous perennials, some monocarpic, with pinnately or palmately divided leaves and small white or purple flowers in large umbels

A. gigas is a robust biennial or short-lived perennial with pinnately divided leaves and erect, branched, purple stems bearing large umbels of deep purple flowers in late summer and early autumn

Other common names

  • Korean angelica

How to grow

Sunlight

  • Full sun
  • Part shade
  • Full shade

Aspect

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

Cultivation

The ideal position is a deep, moist, loamy soil in full or partial shade but it can tolerate drier conditions if mulched. A short-lived perennial.

Soil

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

Propagation

Propagate by seed sown in a cold frame with good light, as soon as ripe.Exposure to light is required for germination. Move seedlings when young as older plants resent disturbance

Suggested planting locations and garden types

Architectural, Cottage/Informal Garden or Flower borders and beds


How to care

Pruning

Cut back after flowering

Pests

Prone to slugs, snails, leaf miners and aphids

Diseases

Susceptible to powdery mildews