Not the plant you're looking for? Search over 300,000 plants

Herbaceous Perennial

Aster amellus 'Sonora'

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

Synonyms

Aster 'Sonora'

Save to My plants

Buy this plant

Plant nurseries
8 suppliers

Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained

pH

Neutral, Alkaline

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

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)

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,

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.