Eryngium alpinum

Sea holly

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Key information

Flower colour

Blue

Feature

Flowers

Hardiness

Hardy

Skill level

Beginner

photo by Chris Burrows, copyright GAP Photos (289753)
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Plant details

This sea holly is indispensable in Mediterranean-type gardens. The stems are immediately eye-catching being steely blue, while the large heads of blue flowers in June sit above a soft frilly ruff of blue bracts. It is incredibly tactile and needs to be placed to the front of a border (but beware of other sea hollies which are incredibly prickly, and need to be kept well away from children). Provide poor, free-draining soil, and ideally a position at the foot of a wall where the soil doesn't stay soaking wet over winter. It has been given the Award of Garden Merit (AGM) by the Royal Horticultural Society.

Family: Apiaceae

Genus: Eryngium

Species: alpinum

Flower colour: Blue

Foliage colour: Blue-green

Feature: Flowers

Sun exposure: Full sun

Soil: Well-drained/light

Hardiness: Hardy

Skill level: Beginner

Height: 70cm

Spread: 45cm


Reader reviews

pameetaylor

how do I take a root cutting?


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