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Herbaceous Perennial

Aster amellus 'Silbersee'
  • RHS AGM
  • RHS Plants for pollinators

A bushy, clump-forming perennial to 60cm high, with upright, leafy stems and lance-shaped, hairy green leaves. Produces clusters of pale lilac, daisy-like flowers with yellow centres from late summer to autumn

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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
Loam
Sand
Moisture
Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Purple Yellow Green
Autumn Purple Yellow Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Asteraceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

Aster can be perennials, annuals or subshrubs, mostly with narrow leaves, and solitary or clustered, daisy-like flowers

Name status

Unresolved

How to grow

Cultivation

Grow in well-drained, open, moderately fertile soil in full sun. Thrives in alkaline soil

Propagation

Propagate by seed sown in containers in a cold frame in spring or autumn, or by division or basal softwood cuttings in spring

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

Cut back after flowering

Pests

May be susceptible to leaf and bud eelworms, aphids, slugs and snails

Diseases

May be susceptible to Fusarium wilt, leaf spot and grey moulds

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