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Eryngium agavifolium

Sea holly

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Key information

Plant type

Hardy perennial

Flower colour

Green

Feature

Flowers, Dramatic foliage

Hardiness

Half hardy

Skill level

Beginner

photo by Carole Drake, copyright GAP Photos (57510)

Plant details

The sea holly is a bold evergreen with an upright stem topped by greenish-white late summer flowers high above wide, spine edged, deep green leaves at the base. It thrives in well-drained soil, prefers full sun and hates having its roots locked in wet winter soil. Keep away from a border edge where the sharp spines might scratch passers-by.

Family: Apiaceae

Genus: Eryngium

Species: agavifolium

Plant type: Hardy perennial

Flower colour: Green

Foliage colour: Dark green

Feature: Flowers, Dramatic foliage

Sun exposure: Full sun

Soil: Well-drained/light, Moist

Hardiness: Half hardy

Skill level: Beginner

Height: 120cm

Spread: 60cm

Time to divide plants: April to April


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