Overview

Symphyotrichum novi-belgii 'Red Star' is a clump forming herbaceous perennial in the genus Symphyotrichum, part of the Asteraceae family, with deciduous foliage. Symphyotrichum novi-belgii 'Red Star' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H7. Suggested uses include coastal, cottage and informal garden, gravel garden, prairie planting, wildlife gardens, cut flowers and flower borders and beds.

About

Symphyotrichum novi-belgii 'Red Star' is a clump-forming herbaceous perennial belonging to the genus Symphyotrichum, known for its daisy-like flower heads with yellow central disc florets and strap-shaped ray florets. This deciduous plant thrives in full sun or partial shade and is suitable for a range of soil types including chalk, clay, loam, and sand, with a preference for moist but well-drained conditions. Hardy to UK zone H7, it is well-suited to coastal, cottage, and informal gardens, as well as flower borders and wildlife gardens. Its season of interest spans summer and autumn.

Growing conditions

Best soil and position for Symphyotrichum

Sunlight
Full sun, Partial shade
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained, Well-drained
Aspect
East-facing, South-facing, West-facing
Exposure
Exposed, Sheltered
UK hardiness
H7

Plant details

Symphyotrichum novi-belgii 'Red Star' size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Clump forming
Foliage
Deciduous
Suggested uses
Coastal, Cottage and informal garden, Gravel garden, Prairie planting, Wildlife gardens, Cut flowers, Flower borders and beds

Care notes

Pruning and caring for Symphyotrichum novi-belgii 'Red Star'

Propagation
Division in spring, Root softwood basal cuttings in spring
Pest resistance
Leaf and bud eelworms, Slugs, Snails
Disease resistance
Verticillium wilt, Powdery mildews, Grey moulds

Frequently asked questions

Where is the best place to plant Symphyotrichum novi-belgii 'Red Star'?

Symphyotrichum novi-belgii 'Red Star' prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Symphyotrichum novi-belgii 'Red Star' need?

Symphyotrichum novi-belgii 'Red Star' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to well-drained.

Is Symphyotrichum novi-belgii 'Red Star' hardy in the UK?

Symphyotrichum novi-belgii 'Red Star' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.

How do I propagate Symphyotrichum novi-belgii 'Red Star'?

Division in spring, Root softwood basal cuttings in spring.

More in the Symphyotrichum genus

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