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Herbaceous Perennial

Asyneuma canescens

A clump-forming, erect perennial to 1m tall with greyish-green, ovate to lance-shaped basal leaves and lance-shaped stem leaves up to 6cm long with rounded teeth. Small, star-shaped, violet-blue flowers with narrow petals are borne in spike-like panicles from midsummer into early autumn

Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Blue Purple Green Grey Silver
Autumn Blue Purple Green Grey Silver
Winter
Position
  • Full sun
Aspect

East–facing or South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Campanulaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Name status

Unresolved

Plant range
S Europe

How to grow

Cultivation

Grow in any moderately fertile, well-drained soil in full sun

Propagation

Propagate by seed or by division

Suggested planting locations and garden types
  • Cottage and informal garden
  • Rock garden
  • Wildflower meadow
  • Flower borders and beds
Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free

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