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Herbaceous PerennialAlpine Rockery

Phyteuma nigrum

A small alpine perennial to a height of 30cm, with a basal rosette of narrow heart-shaped green leaves and deep spiky-looking, but soft, blue-purple cone-shaped flowers on long stems in summer

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

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

Exposure
Exposed or Sheltered
Hardiness
H6
Botanical details
Family
Campanulaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

A genus of flowering herbaceous perennials, native to Europe and Morocco. Foliage is alternate and petiolate, varying in shape between cultivars. Flowers are produced in dense panicles with narrow, five-lobed corolla and are mostly purple, but sometimes pale blue, white or pink

Name status

Correct

Plant range
C Europe

How to grow

Cultivation

Ideal for rock garden or scree in well drained soil in sun or part shade

Propagation

Propagate by seed in autumn in sheltered position or cold frame

Suggested planting locations and garden types
  • Cottage and informal garden
  • Gravel garden
  • Rock garden
  • City and courtyard gardens
  • Low Maintenance
  • Garden edging
  • Wall side borders
  • Flower borders and beds
Pruning

No pruning required

Pests

May be susceptible to damage by slugs and snails

Diseases

Generally disease-free

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