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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....
ERYNGIUM planum
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
-
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
Eryngium - Growing Guide
Herbaceous Plants - Video Collection
- Dividing Herbaceous Perennials - Video Tip ondemand_video
- Spring Planting Osteospermums - Video Tip ondemand_video
- Dividing Summer Perennials - Video Tip ondemand_video
- Dividing summer flowering Hemerocallis - Video Tip ondemand_video
- Summer propagation - Video Tip ondemand_video
- Self-seeding aquilegia - Video Tip ondemand_video
- Supporting Plants - Video Tip ondemand_video
- Dead heading meconopsis - Video Tip ondemand_video
- Dead heading Delphiniums - Video Tip ondemand_video
- Feeding herbaceous peonies - Video Tip ondemand_video
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90cm (3ft)
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45cm (18in) |
ASTRANTIA
Masterwort
BAPTISIA australis
False indigo
Available from £13.50
ECHINACEA purpurea
Purple coneflower
Available from £13.50
ERYNGIUM
Eryngo, Sea holly
PEROVSKIA atriplicifolia 'Blue Spire'
Russian sage
Available from £12.50
PHLOMIS russeliana
Turkish sage
Available from £12.50
SALVIA nemorosa 'Caradonna'
Available from £12.50
STIPA tenuissima
Feather grass
Available from £13.50
Buy Varieties of ERYNGIUM planum
ERYNGIUM planum 'Jade Frost'
Eryngo, Sea holly
Grey-green leaves edged creamy-white and developing pink tones. The foliage contrasts effectively with rich violet-blue flower clusters
Gift-wrapping available
MULTIBUY
individually £12.50 each , 3+ £10.00 each
Useful extras...
Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00
Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
2 options from £6.00
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