Aster alpinus 'Goliath'

RHS Plant Profile

alpine daisy 'Goliath'

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Synonyms

Aster amellus 'Goliath'

Herbaceous Perennial

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A low-growing, herbaceous, clump-forming perennial up to 40cm in height when in flower with a mat of slightly rough, hairy, lance to spoon-shaped, bright green leaves and single, purple-blue daisy-like flowers with yellow centres, in early summer through until the end of the autumn

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: East–facing or South–facing or West–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): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asteraceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming
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 moderately fertile, well-drained soil in an open sunny position. See aster cultivation for further advice

Propagation

Propagate by division in spring or root softwood basal cuttings in spring

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Gravel garden
Patio and container plants
Rock garden
Flower borders and beds
Garden edging

Pruning

Deadhead spent flowers to tidy, cut back stem close to the ground in late autumn

Pests

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

Diseases

May be susceptible to Verticillium wilt, Powdery mildews and grey moulds