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Last updated 26/3/20 10:28.

'E' > ERYNGIUM > planum >

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

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Mature Size
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Goes Well With
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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

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Eryngium - Growing Guide

Growing Eryngium – Sea Holly

Herbaceous Plants - Video Collection

90cm (3ft)
	45cm (18in)

Buy Varieties of ERYNGIUM planum

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

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individually £12.50 each, 3+ £10.00 each

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Available late spring to early summer 2020 - These plants will be available again sometime in late spring/early summer depending on growing conditions.