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Dictamnus albus var. purpureus AGM

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© RHS 2002

Characteristics

Plant type

Herbaceous Perennial

Habit

Bushy

Fragrance

Leaf or Flower

Toxicity

Skin contact may cause photodermatitis

Resilience

Hardiness

H6 (hardy - very cold winter)

Colour

Flower

Purple and Pale Purple in Summer

Foliage

Green in Autumn, Spring and Summer

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.5-1 metres

Time to ultimate height

2-5 years


Preferred common name

purple-flowered dittany

Family

Rutaceae


Dictamnus are woody-based, aromatic perennials with erect stems bearing pinnate leaves and terminal racemes of 5-petalled flowers

D. albus var. purpureus is an herbaceous perennial to 90cm in height, with aromatic, pinnate foliage and erect spikes of veined, rosy-purple flowers with prominent stamens

Synonym(s)

  • Dictamnus albus 'Fraxinella'
  • Dictamnus albus 'Rubra'
  • Dictamnus fraxinella

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

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

Cultivation

Grow in any well-drained, moderately fertile soil in full sun or partial shade

Soil

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

Propagation

Propagate by seed sown in pots in a cold frame as soon as ripe or in early spring

Suggested planting locations and garden types

Cottage/Informal Garden, Flower borders and beds or Low Maintenance


How to care

Pruning

Cut back to the base in autumn

Pests

Generally pest free

Diseases

Generally disease free