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Collector's item

Eryngium horridum

Eryngium horridum
Yellow-tinged Ivory White Sea Holly

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This plant carries a 12 months recovery warranty

More information

Eryngium horridum, with globular white-greenish inflorescences.
Height at maturity
1.80 m
Spread at maturity
80 cm
Exposure
Sun
Hardiness
Hardy down to -9°C
Soil moisture
Dry soil
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Best planting time February to March, September to October
Recommended planting time February to May
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Flowering time August to October
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Description

A strong clump of bluish-green leaves resembling those of a grass but with a midrib of small smooth thorns on each side of the leaves. From the centre of the clump, numerous spikes up to 3 meters (10 feet) tall emerge, branching upwards, bearing globular white-green inflorescences.

Eryngium horridum in pictures

Eryngium horridum (Foliage) Foliage
Eryngium horridum (Plant habit) Plant habit

Flowering

Flower colour white
Flowering time August to October

Foliage

Foliage persistence Evergreen
Foliage colour medium green

Plant habit

Height at maturity 1.80 m
Spread at maturity 80 cm
Growth rate normal

Botanical data

Genus

Eryngium

Species

horridum

Family

Apiaceae

Other common names

Yellow-tinged Ivory White Sea Holly

Origin

Cultivar or hybrid

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Planting and care

These plants are very easy to cultivate on a slope where, with the addition of gravel to improve drainage, they live for a long time. A very graphic plant with a great effect in a scree garden or on paving, in any well-drained soil. Hardiness is not its strong point, it needs a sheltered location from cold winds outside coastal areas.

Planting period

Best planting time February to March, September to October
Recommended planting time February to May

Intended location

Type of use Border
Hardiness Hardy down to -9°C (USDA zone 8b) Show map
Ease of cultivation Amateur
Planting density 3 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Stony (poor and well-drained)
Soil moisture Dry soil

Care

Overwinter Can be left in the ground

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