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.

ERYNGIUM planum

 
  • 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.
  • Garden Location/Conditions
    Border
    Suits a mixed or herbaceous border
  • Hardiness
    Fully hardy
  • 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'

Eryngo, Sea holly

grey-green leaves edged creamy-white and developing pink tones. The foliage contrasts effectively with rich violet-blue flower clusters

 
individually £13.50 each , 3+ £12.00 each 
Notify me when this plant is available to order
Available late spring to early summer 2024 - Spring according to the Met Office is defined as March 1st - May 31st. Therefore late spring is mid-April onwards. This is not a guaranteed date but an estimate and subject to availability.

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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