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Seeds of Eryngium giganteum 'Miss Willmott's Ghost' - Giant Sea Holly.
Order in the next for dispatch today!
Dispatch by letter from 3,90 €.
Delivery charge from 5,90 € Oversize package delivery charge from 6,90 €.
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This plant carries a 6 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
Seed-only orders are dispatched by sealed envelope. The delivery charge for seed-only orders is 3,90 €.
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Eryngium giganteum 'Miss Willmott's Ghost', also known as Giant Sea Holly, is a large thistle, typically biennial, that forms clumps of vibrant green heart-shaped foliage that turns silver in summer. It displays large clusters of steel blue or soft green conical heads, surrounded by beautifully serrated and silver bracts, very spiny. This plant often dies after flowering, but self-seeds spontaneously in light soil. Perfect in wildflower beds, in fresh or dried bouquets, of great ornamental value, it enjoys sun and well-drained, deep, even dry, rocky and poor soils.
Giant Sea Holly is a plant of the Apiaceae family (Umbelliferae), native to the Caucasus and Iran. Hardy down to -20°C, this blue thistle develops a rosette of deciduous, basal, heart-shaped leaves, medium green with white veins, which turn more greyish with heat. In July, bluish-grey inflorescences at maturity form conical and spiny cylinders 10cm (3.9in) long, accompanied by cut, leathery, silver bracts also 10cm (3.9in) long, all on stiff and branched stems. The dried flowers hold up well in dried bouquets. This short-lived perennial plant, often semelparous, readily self-seeds in rocky and deep soils.
Eryngium giganteum is well suited for rock gardens, flower beds or wild gardens, alongside Dianthus, Perovskia, and Stipa. This plant is beautiful everywhere, without overshadowing other blooms. Its rapid growth is a blessing for brand new gardens, or to fill the spaces left empty by a harsh winter. The semi-open cut flowers are splendid in dried bouquets, and make wonderful table decorations for Christmas.
Flowering
Foliage
Plant habit
Botanical data
Sow Eryngium seeds from February to July, in trays, pots, etc. in a special sowing compost that you place in a propagator or a warm place to maintain an optimal temperature of 18-20°C. Cover the seeds with a thin film of vermiculite or compost. Do not exclude light. Germination can be slow. Enclose the sowing in a polyethylene bag and keep at 15-18°C for 2 weeks, then place it in the refrigerator (not the freezer) for 3 to 6 weeks. After this step, bring the sowing back to the recommended temperature for germination. If germination does not occur within 6 to 10 weeks, place it back in the refrigerator for another 3 to 6 weeks.
Regularly check your stored seeds in the refrigerator and immediately remove seeds showing signs of germination.
Transplant the young plants when they are large enough to handle into 8cm (3.1in) diameter pots. Let them grow in a cold frame and plant them in the garden the following spring. Maintain a spacing of 30cm (11.8in) between each plant. Choose a sunny exposure and well-drained soil.
Cultivation: Eryngium giganteum grows in deep, dry, well-drained soil, even poor and rocky in hot and sunny situations.
Sowing period
Intended location
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.