Sea holly

Eryngium planum 'Blauer Zwerg' (syn. 'Blue Dwarf')

Sea holly - Eryngium planum  'Blauer Zwerg' (syn. 'Blue Dwarf')

Common Name: Sea holly
Genus: Eryngium
Species: planum
Cultivar: 'Blauer Zwerg' (syn. 'Blue Dwarf')

Category: Perennials
Growth Rate: Average
Features: Makes good cut flowers, Good for a rock garden, Provides winter colour, Long flowering period

Hardiness: HardyHeight: 0.50 m (50 cm)
Sun/Shade: Full sunSpread: 0.45 m (45 cm)

Foliage Type: EvergreenFlower Colour: Blue, Purple
Foliage Colour: GreenFlowering Period: July to September

Soil Type: Sandy/Light or Chalky/Alkaline
Soil Moisture: Dry, well drained

Easily recognised by their ruff of spiky bracts surrounding a prominent cone-like centre of tiny flowers sea hollies make a bold statement in a sunny border or gravel garden. This variety produces masses of small intense blue-purple teasel-like flowers on branched stems from July to September. It is low-growing and evergreen and therefore a great choice for the front of a sunny well-drained border or gravel garden. The spiky flowers are also perfect for use in dried flower arrangements.

  • Garden care: Lift and divide large colonies in spring. Avoid the temptation to cut back the flower-heads in autumn as they provide interest in the winter garden.




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