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ERYNGIUM planum

Commonly known as Blue sea holly, Eryngo

Clump-forming with light blue flowers and blue green bracts. A useful cut flower with 3 foot stems
Further Reading....

  • Evergreen - oblong, toothed, dark-green basal leaves 5-10cm (2-4in) long with heart-shaped bases.
  • Blue
  • Height - 90cm (3ft)
  • Spread - 45cm (18in)
  • Herbaceous - Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch. - clump forming perennial. Cones of flowers 1-2cm (¾in) with spiky bracts to 2.5cm (1in) long.
  • Hardy - average winter - Hardy through most of the UK apart from inland valleys, at altitude and central/northerly locations. May suffer foliage damage and stem dieback in harsh winters in cold gardens. Plant can withstand temperatures down to -10°C (14°F)
  • Full sun - protect from winter wet.
  • Additional Features - Good to know - - wildlife plant - nectar and pollen for insects.
  • Pests & Diseases - root rot, slugs, snails, powdery mildew.
  • Place of origin - southeastern Europe to central Asia.
  • Hardiness - Frost hardy (down to -5) -
  • Seasonal Interest - Autumn -
  • Spring
  • Summer
  • Winter
  • Soil Conditions - Well drained, dry, poor to moderately fertile soil -
  • Wildlife - Bee friendly -
  • Butterfly friendly
  • Rabbit Resistant
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
90cm (3ft)
Herbaceous - guide for size not form Watering Can
  45cm (18in)
 

Buy Varieties of ERYNGIUM planum

ERYNGIUM planum 'Jade Frost'

ERYNGIUM planum 'Jade Frost'  >


Commonly known as: Eryngo, Sea holly .
Grey-green leaves edged creamy-white and developing pink tones. The foliage contrasts effectively with rich violet-blue flower clusters
Multibuy
individually £12.50 each, 3+ £10.00 each
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Available again from summer 2021 -

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