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amethyst sea holly | Plant Finder | Fill My Garden

Home/Plants/Perennials

Plants > Perennials

amethyst sea holly

Eryngium amethystinum

Drought Resistant

Genus: Eryngium
Family: Apiaceae
Common Names: amethyst eryngo, Italian eryngo

About this plant

E. amethystinum is a semi-evergreen, clump-forming perennial to around 70cm tall forming a rosette of divided basal leaves. Egg-shaped to rounded, steel blue flowerheads to 2cm long are borne on upright, branching stems often also coloured a deep blue; each flowerhead is surrounded by spreading blue-silver bracts

Growing Information

Height

0.5-1 Metres

Spread

0.1-0.5 Metres

Hardiness

Foliage

Semi Evergreen

Growing Conditions

Sunlight

Full Sun

Soil

ClayLoamSandy

AcidAlkalineNeutral

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Moisture

Well Drained

Aspect

South FacingWest FacingEast Facing

Exposure

ShelteredExposed

Care Guide

Cultivation

Grow in dry, well-drained soil that is poor to moderately fertile. Full sun is essential and protect from winter wet

Pruning

Although you can cut back flower stems after flowering the seedheads are a very attractive feature so are usually left over winter

Propagation

Propagate by root cuttings in late winter

Pests

Can get leaf and bud eelworms

Diseases

May be affected by powdery mildews and root rot

Garden Uses

Uses

Cottage InformalFlower BordersHedging ScreensPatio ContainerCity CourtyardGround CoverRock Garden

Planting Places

IndoorOutdoorConservatoryGreenhouse

Season of Interest

SpringSummerAutumn

Size & Characteristics

Height

0.5-1 Metres

Spread

0.1-0.5 Metres

Habit

Bushy

Time to Full Height

Five To Ten Years