Eryngium alpinum

A glamorous, large-flowered sea-holly with sculpted heads in steely grey or rich royal blue. Hard to beat and loved by pollinators. More
50 seeds 070069 £2.95 In stock
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1 x 9cm pot 511306-1 £7.95
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3 x 9cm pots 511306-3 £19.95
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More Details

A glamorous, large-flowered sea-holly with sculpted heads in a steely grey or rich royal blue. Hard to beat and loved by pollinators.

Genus Eryngium
Group/Species alpinum
Type Perennial
Common Name Sea Holly
Border Position Border (Middle)
Soil Type Broad Tolerance
Scent Unscented
Site Full Sun
Moisture Well-drained
Height 75cm (30in)
Spacing 45cm (18in)
Sowing, Seeds, Planting Direct sow March-April and/or August-September. May need a warm-cold-warm cycle and may be slow to germinate, taking up to 80 days. Sow in the autumn for best results, in shallow pans in light soil under a cold frame. Grow seedlings on until large and strong enough to be planted outdoors into its final position in the garden. Choose a spot with fairly dry, well-drained soil that is poor to moderately fertile. Full sun is essential as is protection from winter wet. This also grows well in container pots.
Care Tips The seedheads are a valuable feature so leave a few to use over winter. Avoid root disturbance.
Flowering July - October, the following year
Vase Life Give eryngiums a long drink in deep water. They should last for 2 weeks. Or dry in time for your Christmas table.
Harvesting Flower production: 12 weeks.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sow Under Cover/Plant Indoors
  • Direct Sow/Plant Outdoors
  • Flowers/Harvest
Advice

We don't currently have additional advice on using / growing this particular product on our website, but if you do have a question that isn't answered on this page then please give us a call on 0345 092 0283 and we'll happily chat through any queries you may have, or email us at info@sarahraven.com. Please note all email replies are taking up to 10 working days.

Delivery

Plant Delivery - When in stock, please allow up to 3-4 weeks for despatch. For fruit & veg bare roots/crowns, please allow up to 2 weeks for despatch.

Seeds Delivery - When in stock, please allow 2-3 days for despatch.

Click here to find out more information about our delivery rates and times.

Eryngium alpinum reviews

* * * * * Average based on 7 reviews

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Reviewed 8th August 2019 by Sally

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Reviewed 31st July 2019 by Elaine

Not planted yet but last years plants are amazing

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Reviewed 31st July 2019 by Deborah

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Reviewed 31st July 2019 by Christina

Arrived in good condition and all growing well.

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Reviewed 31st July 2019 by Gilly

Very good. Despite being very small, it is doing well.

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Reviewed 31st July 2019 by Karen

These seeds did not germinate sadly.

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Reviewed 31st July 2019 by Katie

Slow growing but healthy and doing well so far