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Herbaceous Perennial

Astrantia 'Star of Treasure'PBR
  • RHS Plants for pollinators

astrantia 'Star of Treasure'

'Star of Treasure' has lobed green leaves and flowers of reddish-pink flowers,with pincushion, centresappearing between mid and late summer. The flowers attract bees and butterflies.

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0–0.1 metre
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Poorly–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Red Pink Green Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

East–facing or South–facing or North–facing or West–facing

Exposure
Sheltered
Hardiness
H7
Botanical details
Family
Apiaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

Astrantia are clump-forming herbaceous perennials with palmately lobed basal leaves and branched, erect, wiry stems bearing compact umbels of tiny flowers surrounded by a rosette of showy bracts

Name status

Accepted

How to grow

Cultivation

Best grown in moist, fertile, humus-rich soil in sun or partial shade but will tolerate drier conditions

Propagation

Propagate by seed sown in pots in a cold frame as soon as seed is ripe or propagate by division in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Flower borders and beds
Pruning

Deadhead before seed is ripe to prevent self-seeding

Pests

May be affected by Astrantia leaf miner

Diseases

Powdery mildews may be troublesome

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