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Herbaceous Perennial

Thalictrum flavum subsp. glaucum 'Ruth Lynden-Bell'
  • RHS AGM
  • RHS Plants for pollinators

glaucous-leaved yellow meadow rue 'Ruth Lynden-Bell'

A vigorous, clump-forming, rhizomatous herbaceous perennial to about 1.2m high, with greyish, blue-green stems and deeply divided greyish blue-green foliage. In summer clusters of fluffy, fragrant creamy-yellow flowers are produced

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Green Blue Green
Summer Blue Green Cream Yellow Blue Green
Autumn Blue Green Blue Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing or East–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 moist, humus-rich soil, best partial shade but can tolerate drier soil and more sun than many other species. May need staking. 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
  • Wildlife gardens
  • Flower borders and beds
Pruning

Faded flower stems can be cut back in late autumn or in spring before new growth starts emerging

Pests

May be susceptible to slugs

Diseases

May be susceptible to powdery mildews in dry conditions

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