Overview
Symphyotrichum novi-belgii 'Kassel' is a clump forming herbaceous perennial in the genus Symphyotrichum, part of the Asteraceae family, with deciduous foliage. Symphyotrichum novi-belgii 'Kassel' 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 and wildlife gardens.
About
Symphyotrichum novi-belgii 'Kassel' is a clump-forming herbaceous perennial belonging to the genus Symphyotrichum, which includes around 90 species known for their daisy-like flower heads with yellow central disc florets and colourful ray florets. This deciduous plant thrives in full sun or partial shade and prefers fertile, moist but well-drained soils such as chalk, clay, loam, or sand with a range of pH levels. Hardy to UK zone H7, it is suitable for various garden settings including coastal, cottage, gravel, prairie, and wildlife gardens. It is best propagated by division or root softwood basal cuttings in spring and offers interest through 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 'Kassel' 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
Care notes
Pruning and caring for Symphyotrichum novi-belgii 'Kassel'
- Propagation
- Propagate by division in spring or root softwood basal cuttings in spring; division can be carried out every third year to maintain vigour
- Pest resistance
- May be susceptible to leaf and bud eelworms, slugs and snails
- Disease resistance
- May be susceptible to Verticillium wilt, powdery mildews and grey moulds
Frequently asked questions
Where is the best place to plant Symphyotrichum novi-belgii 'Kassel'?
Symphyotrichum novi-belgii 'Kassel' prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Symphyotrichum novi-belgii 'Kassel' need?
Symphyotrichum novi-belgii 'Kassel' 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 'Kassel' hardy in the UK?
Symphyotrichum novi-belgii 'Kassel' 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 'Kassel'?
Propagate by division in spring or root softwood basal cuttings in spring; division can be carried out every third year to maintain vigour.
More in the Symphyotrichum genus
- Symphyotrichum 'Pink Star'
- Symphyotrichum 'Prairie Purple'
- Symphyotrichum concolor
- Symphyotrichum cordifolium 'Avondale'
- Symphyotrichum ericoides 'Cinderella'
- Symphyotrichum ericoides 'Rosy Veil'
- Symphyotrichum falcatum var. commutatum
- Symphyotrichum laeve 'Arcturus'aster 'Arcturus'
