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Herbaceous Perennial

Thalictrum 'Elin'
  • RHS AGM

rue 'Elin'

'Elin' is a vigorous, erect, clump-forming, rhizomatous herbaceous perennial up to 2.5m high, with deep purple stems, three-ternate or four-ternate leaves, up to 45cm long, of rounded, three-lobed or five-lobed blue-green leaflets, and panicles of flowers, 1cm across, of pale lilac sepals and long, cream-yellow stamens, in summer; honeybees visit Thalictrum flowers for pollen

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Purple Blue Green
Summer Purple Cream Purple Blue Green
Autumn Purple Blue Green
Winter
Position
  • Partial shade
Aspect

South–facing or North–facing or East–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Ranunculaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

Thalictrum can be rhizomatous or tuberous perennials with ternately or pinnately divided, often attractive foliage, and panicles or racemes of small flowers with showy stamens and sometimes large colourful petal-like sepals

Name status

Accepted

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How to grow

Cultivation

Grow in moisture-retentive, humus-rich but well-drained soil in partial shade, and provide support if necessary, for example by growing among shrubs. See staking perennials for further advice.

Propagation

Propagate by division as new growth begins in spring; divisions may be slow to re-establish

Suggested planting locations and garden types
  • Cottage and informal garden
  • City and courtyard gardens
  • Cut flowers
  • Flower borders and beds
Pruning

No pruning required

Pests

May be affected by slugs

Diseases

May be affected by powdery mildews in dry conditions

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