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Herbaceous Perennial

Symphyotrichum novae-angliae 'Violetta'

New England aster 'Violetta'

A clump-forming herbaceous perennial, up to 1.6m high, with strong woody stems and lance-shaped green leaves. Clustered, daisy-like, rich violet flowerheads, with orange-brown discs, are borne in autumn

Synonyms

Aster novae-angliae 'Violetta'

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Ultimate height

1.5–2.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

South–facing or North–facing or East–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)

Botanical details

Family: Asteraceae
Native to the UK: No
Foliage: Deciduous
Habit: Clump forming
Genus: Symphyotrichum includes around 90 species of annuals, biennials and perennials, mostly spread through the Americas, that were formerly included within the genus Aster. Leaves are simple, lance-shaped and entire, but it is their daisy-like flowerheads that they are grown for; central disc florets are typically yellow, surrounded by strap-shaped ray florets in shades of pink, blue, purple or white
Name status: Accepted

How to grow

Cultivation

Grow in rich, fertile, moisture-retentive soil, in full sun if the soil remains moist throughout the growing season, or in partial shade; mulch every year after cutting down in late autumn. As one of the taller cultivars, it may require support - see staking perennials

Propagation

Propagate by division in spring; regular division helps to keep plants healthy and vigorous but is only necessary every few years

Suggested planting locations and garden types

Prairie planting
City and courtyard gardens
Cottage and informal garden
Flower borders and beds
Cut flowers

Pruning

No pruning required, except cutting stems close to the ground in late autumn

Pests

May be affected by eelworm, aphids, slugs, and snails

Diseases

May be affected by Fusarium foot rot, leaf spot, grey moulds, Verticillium wilt and powdery mildews

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