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Herbaceous Perennial

Centaurea dealbata 'Steenbergii'
  • RHS Plants for pollinators

mealy centaury 'Steenbergii'

'Steenbergii' is a perennial forming a clump of pinnately lobed leaves, grey-hairy beneath, with deep pink flower-heads in summer

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Pink Green
Autumn Green
Winter
Position
  • Full sun
Aspect

West–facing or South–facing or East–facing

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

Centaurea may be annuals, perennials or subshrubs, with simple or pinnately lobed leaves and showy thistle-like flowers-heads, often with enlarged outer florets

Name status

Accepted

How to grow

Cultivation

Any well-drained soil in full sun; good drought resistance. A fairly dry, poor soil is best as plants can be invasive if soil is rich and moist.

Propagation

Propagate by seed sown in pots in a cold frame in spring or propagate by division in spring or autumn

Suggested planting locations and garden types
  • Coastal
  • Cottage and informal garden
  • Wildlife gardens
  • Gravel garden
  • Prairie planting
  • Cut flowers
  • Flower borders and beds
Pruning

Deadhead regularly to prolong flowering

Pests

Generally pest free

Diseases

May be affected by powdery mildews

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