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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 5–10Type PerennialClimate Temperate
Sea Holly (Eryngium Maritimum) — A resilient coastal plant; it thrives in USDA hardiness zones 5 through 9

Culture

Sun
Full
Water
Low
USDA zones
5–10

Shape & size

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

Classification

Type
Perennial
Family
Apiaceae (Umbelliferae)
Climate
Temperate

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Photos (137)

Sea Holly (Eryngium Maritimum) — attracting pollinators while deterring deer; is a striking perennial valued for its thistle-like blooms, image 105
Sea Holly (Eryngium Maritimum) — scientifically known as Eryngium maritimum; silvery-green foliage forms a low rosette, image 56
Sea Holly (Eryngium Maritimum) — is a striking perennial valued for its thistle-like blooms; minimal maintenance is required, though it may benefit, image 107
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, image 87
Sea Holly (Eryngium Maritimum) — it thrives in USDA hardiness zones 5 through 9; these distinctive flowers
Sea Holly (Eryngium Maritimum) — branched stems rise in summer; it boasts silvery-blue, thistle-like blooms atop 2-3 feet stems, with a spread of, image 65
Sea Holly (Eryngium Maritimum) — is a striking perennial valued for its thistle-like blooms; minimal maintenance is required, though it may benefit, image 57
Sea Holly (Eryngium Maritimum) — perennial with blue blooms; branched stems rise in summer
Sea Holly (Eryngium Maritimum) — are a magnet for pollinators like bees and butterflies; attracting pollinators while deterring deer, image 69
Sea Holly (Eryngium Maritimum) — These distinctive flowers; topped with cone-shaped flower heads surrounded by a ruff of spiny bracts
Sea Holly (Eryngium Maritimum) — Sea Holly, or Eryngium maritimum, is a striking perennial suitable for coastal themes; its unique texture and, image 76
Sea Holly (Eryngium Maritimum) — Its unique texture and structure add visual interest from summer to early fall; perennial for full, image 79
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, image 112
Sea Holly (Eryngium Maritimum) — it thrives in USDA hardiness zones 5 through 9
Sea Holly (Eryngium Maritimum) — This tough plant thrives in full sun, in well-drained soil, and tolerates drought and poor soils; peaking at, image 103
Sea Holly (Eryngium Maritimum) — with a tolerant attitude toward drought once established
Sea Holly (Eryngium Maritimum) — which add a unique texture and a touch of steel blue to the landscape; this tough plant thrives in full sun, in, image 108
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) — This tough plant thrives in full sun, in well-drained soil, and tolerates drought and poor soils
Sea Holly (Eryngium Maritimum) — Minimal maintenance is required, though it may benefit from protection in areas with extremely cold winters; are a, image 96
Sea Holly (Eryngium Maritimum) — These distinctive flowers; topped with cone-shaped flower heads surrounded by a ruff of spiny bracts, image 117
Eryngium Maritimum
Eryngium Maritimum
Eryngium Maritimum
Photographs by 13 contributors

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