Dictamnus albus var. albus

RHS Plant Profile

white-flowered dittany

Synonyms

Dictamnus albus var. purpureus
Dictamnus albus var. roseus
Dictamnus fraxinella
Dictamnus albus 'Fraxinella'
Dictamnus albus 'Rubra'
Dictamnus angustifolius
Dictamnus caucasicus
Dictamnus gymnostylis
Dictamnus albus turkestanicus
Dictamnus tadshikorum
Dictamnus albus var. caucasicus
Dictamnus dasycarpus
Dictamnus tadschicorum
Dictamnus takzhikorum
Dictamnus albus purple-flowered

Herbaceous Perennial

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An erect herbaceous perennial to 90cm, with aromatic, pinnate leaves and spikes of white flowers 2.5cm in width, with prominent stamens

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: West–facing or East–facing or South–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H6

Colour & Scent

Fragrance Flower Foliage

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Rutaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Potentially harmful: TOXIC to skin with sunlight. Wear gloves and other protective equipment when handling TOXIC to pets with sunlight - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus: Dictamnus are woody-based, aromatic perennials with erect stems bearing pinnate leaves and terminal racemes of 5-petalled flowers
Name Status: Correct

How to Grow

Cultivation

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

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 and informal garden
Wildlife gardens
Flower borders and beds

Pruning

Cut back to the base in autumn

Pests

Generally pest-free

Diseases

Generally disease-free