Sea Holly

Eryngium Maritimum

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Overview

Sea Holly, or Eryngium maritimum, is a striking perennial suitable for coastal themes. It boasts silvery-blue, thistle-like blooms atop 2-3 feet stems, with a spread of up to 18 inches. This tough plant thrives in full sun, in well-drained soil, and tolerates drought and poor soils. Its unique texture and structure add visual interest from summer to early fall, attracting pollinators while deterring deer. USDA zones 5-9.

Sun FullWater LowZones 5–10Climate Temperate

Sea Holly (Eryngium Maritimum) — Sea Holly, or Eryngium maritimum, is a striking perennial suitable for coastal themes

Sea Holly (Eryngium Maritimum) — It boasts silvery-blue, thistle-like blooms atop 2-3 feet stems, with a spread of up to 18 inches

Sea Holly (Eryngium Maritimum) — This tough plant thrives in full sun, in well-drained soil, and tolerates drought and poor soils

Sea Holly (Eryngium Maritimum) — Its unique texture and structure add visual interest from summer to early fall

Sea Holly (Eryngium Maritimum) — attracting pollinators while deterring deer

Sea Holly (Eryngium Maritimum) — scientifically known as Eryngium maritimum

Sea Holly (Eryngium Maritimum) — is a striking perennial valued for its thistle-like blooms

Culture

Sun: Full
Water: Low
USDA zones: 5–10

Shape & size

Mature height: 2–3 Ft.
Mature width: 2–3 Ft.

Classification

Family: Apiaceae (Umbelliferae)
Climate: Temperate

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Photos (117)

Sea Holly (Eryngium Maritimum) — Sea Holly, or Eryngium maritimum, is a striking perennial suitable for coastal themes

Sea Holly (Eryngium Maritimum) — It boasts silvery-blue, thistle-like blooms atop 2-3 feet stems, with a spread of up to 18 inches

Sea Holly (Eryngium Maritimum) — This tough plant thrives in full sun, in well-drained soil, and tolerates drought and poor soils

Sea Holly (Eryngium Maritimum) — Its unique texture and structure add visual interest from summer to early fall

Sea Holly (Eryngium Maritimum) — attracting pollinators while deterring deer

Sea Holly (Eryngium Maritimum) — scientifically known as Eryngium maritimum

Sea Holly (Eryngium Maritimum) — is a striking perennial valued for its thistle-like blooms

Sea Holly (Eryngium Maritimum) — which add a unique texture and a touch of steel blue to the landscape

Sea Holly (Eryngium Maritimum) — branched stems rise in summer

Sea Holly (Eryngium Maritimum) — A resilient coastal plant

Sea Holly (Eryngium Maritimum) — it thrives in USDA hardiness zones 5 through 9

Sea Holly (Eryngium Maritimum) — tolerating harsh seaside conditions and poor

Sea Holly (Eryngium Maritimum) — This robust species typically reaches a height of 18 to 24 inches with a similar spread of 12 to 18 inches

Sea Holly (Eryngium Maritimum) — making it an excellent choice for filling mid-level layers in a garden design.<br><br>The deeply lobed

Sea Holly (Eryngium Maritimum) — silvery-green foliage forms a low rosette

Sea Holly (Eryngium Maritimum) — are a magnet for pollinators like bees and butterflies

Sea Holly (Eryngium Maritimum) — Minimal maintenance is required, though it may benefit from protection in areas with extremely cold winters

Sea Holly (Eryngium Maritimum) — with a tolerant attitude toward drought once established

Sea Holly (Eryngium Maritimum) — These distinctive flowers

Sea Holly (Eryngium Maritimum) — topped with cone-shaped flower heads surrounded by a ruff of spiny bracts

Sea Holly (Eryngium Maritimum) — peaking at approximately 1 to 2 inches in diameter

Sea Holly (Eryngium Maritimum) — Sea Holly, or Eryngium maritimum, is a striking perennial suitable for coastal themes; its unique texture and structure add

Sea Holly (Eryngium Maritimum) — Its unique texture and structure add visual interest from summer to early fall; perennial for full

Sea Holly (Eryngium Maritimum) — This tough plant thrives in full sun, in well-drained soil, and tolerates drought and poor soils; peaking at approximately 1

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