Aster amellus 'Sonora'

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Synonyms

Aster 'Sonora'

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Herbaceous Perennial
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A sturdy clump-forming, border perennial, to between 30 to 60cm in height, with tough, grey-green, narrowly oval, leaves, coarsely hairy above. Stems bear clusters of 6cm wide, violet rayed, yellow centred flowers, from August to October

Position

Full sun

Soil Types

Chalk, 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 Loam Sand
Moisture
Moist but well–drained
pH
Neutral or Alkaline

Position

Full sun
Aspect
South–facing or West–facing or East–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)
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
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
Accepted

How to Grow

Cultivation

Grow in moisture retentive but well drained soil in full sun.

Propagation

Propagate by division or basal cuttings

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens
  • Coastal
  • City and courtyard gardens
  • Flower borders and beds
  • Cut flowers

Pruning

Cut back after flowering

Pests

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

Diseases

May be susceptible to fusarium wilt, grey moulds and leaf spot. Mildew resistant,