Sea Holly

Eryngium maritimum, Apiaceae

Zones

5–9

Layer

Herbaceous

Lifespan

Perennial

Growth

Slow

Guild Roles

Pollinator AttractorBeneficial Insect HabitatPest Confuser

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)

Soil pH

6 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Matted Sea LavenderLimonium bellidifolium

Wind ProtectionPollinator Sharing

Alpine ScabiousCephalaria alpina

Pollinator SharingBeneficial Insect Habitat

Cylindric BlazingstarLiatris cylindracea

Pollinator Sharing

Santa Barbara CeanothusCeanothus impressus

Wind ProtectionBeneficial Insect Habitat

Antagonistic Plants

Bluestone EryngoEryngium integrifolium

Eryngo species produce saponins and other compounds that inhibit congeneric competition

Uses

Functions

Attracts Native Mason BeesSupports Parasitic WaspsProvides Hoverfly NectarLate Season Pollinator ResourceAttracts Beneficial Ichneumon Wasps

Edible Parts

RootsYoung Shoots

Medicinal Uses

DiureticAnti-Inflammatory

Common Questions

What zones does Sea Holly grow in?

Sea Holly grows in USDA hardiness zones 5 through 9.

What are good companion plants for Sea Holly?

Good companions for Sea Holly include Matted Sea Lavender, Alpine Scabious, Cylindric Blazingstar, Santa Barbara Ceanothus.

Design guilds with Sea Holly and see companion relationships visually.

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