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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....
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EvergreenOblong, toothed, dark-green basal leaves 5-10cm (2-4in) long with heart-shaped bases.
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Blue -
Height90cm (3ft) -
Spread45cm (18in)
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HerbaceousEarly 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.
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Hardy - average winterHardy 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 sunProtect from winter wet.
ERYNGIUM planum
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional Features
Good to knowWildlife plant - nectar and pollen for insects.
Pests & Diseasesroot rot, slugs, snails, powdery mildew.
Place of originSoutheastern Europe to central Asia. -
Garden Location/ConditionsBorderSuits a mixed or herbaceous border
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HardinessFully hardy
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Seasonal InterestAutumnSpringSummerWinter
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Soil ConditionsWell drained, dry, poor to moderately fertile soil
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Wildlife
Bee friendlyButterfly friendlyRabbit 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
- Overpotting Problems - Video Tip ondemand_video
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90cm (3ft)
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45cm (18in) |
ASTRANTIA
Masterwort
BAPTISIA australis
False indigo
Available from £14.50
ECHINACEA purpurea
Purple coneflower
Available from £14.50
ERYNGIUM
Eryngo, Sea holly
PEROVSKIA atriplicifolia 'Blue Spire'
Russian sage
Available from £13.50
PHLOMIS russeliana
Turkish sage
Available from £14.50
SALVIA nemorosa 'Caradonna'
Available from £13.50
STIPA tenuissima
Feather grass
Available from £14.50
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
individually £13.50 each , 3+ £12.00 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
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00
Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00
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)
3 options from £3.00
Fertilisers & Feeds - Empathy
Rootgrow Ericoid mycorrhizal fungi
This specially adapted Rootgrow™ mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries.
It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.
Only £7.50
Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50
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