Overview

Aster ageratoides 'Blaukuppel' is a clump-forming, upright stems herbaceous perennial in the genus Aster, part of the Asteraceae family, with mid green, narrowly lance-shaped to linear foliage. Aster ageratoides 'Blaukuppel' grows best in full sun and partial shade, and tolerates loam soils and neutral pH. Its UK hardiness is rated H6. Suggested uses include borders, cottage gardens and mixed borders.

About

Aster ageratoides 'Blaukuppel' is a clump-forming perennial cultivar of the Aster genus, known for its upright stems and narrowly lance-shaped to linear mid-green leaves. It thrives in fertile, moisture-retentive loam soil with a neutral pH, preferring full sun to partial shade in sheltered, south- or west-facing aspects. Hardy to UK zone H6, it is well suited to borders, cottage gardens, and mixed borders, providing interest through summer and autumn. Propagation can be achieved by division or seed sowing.

About the genus

Aster is a genus of perennial flowering plants in the family Asteraceae. Its circumscription has been narrowed, and it now encompasses around 170 species, all but one of which are restricted to Eurasia; many species formerly in Aster are now in other genera of the tribe Astereae. Aster amellus is the type species of the genus and the family Asteraceae.

Wikipedia contributors, "Aster (genus)", CC BY-SA 4.0Aster (genus)

Growing conditions

Best soil and position for Aster

Sunlight
Full sun, Partial shade
Soil type
Loam
Soil pH
Neutral
Soil moisture
Moisture-retentive
Aspect
South-facing, West-facing
Exposure
Sheltered
UK hardiness
H6

Plant details

Aster ageratoides 'Blaukuppel' size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Clump-forming, Upright stems
Foliage
Mid green, Narrowly lance-shaped to linear
Suggested uses
Borders, Cottage gardens, Mixed borders

Care notes

Pruning and caring for Aster ageratoides 'Blaukuppel'

Propagation
Division, Seed sowing
Pest resistance
Generally pest-resistant
Disease resistance
Generally disease-resistant

Frequently asked questions

Where is the best place to plant Aster ageratoides 'Blaukuppel'?

Aster ageratoides 'Blaukuppel' prefers full sun and partial shade. It suits sheltered positions.

What soil does Aster ageratoides 'Blaukuppel' need?

Aster ageratoides 'Blaukuppel' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moisture-retentive.

Is Aster ageratoides 'Blaukuppel' hardy in the UK?

Aster ageratoides 'Blaukuppel' has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.

How do I propagate Aster ageratoides 'Blaukuppel'?

Division, Seed sowing.

More in the Aster genus

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