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

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) — perennial with blue blooms; branched stems rise in summer, image 74

Sea Holly (Eryngium Maritimum) — blue flowers in the garden; which add a unique texture and a touch of steel blue to the landscape, image 73

Sea Holly (Eryngium Maritimum) — Minimal maintenance is required, though it may benefit from protection in areas with extremely cold winters; are a, image 71

Sea Holly (Eryngium Maritimum) — It boasts silvery-blue, thistle-like blooms atop 2-3 feet stems, with a spread of up to 18 inches; tolerating, image 77

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) — is a striking perennial valued for its thistle-like blooms; minimal maintenance is required, though it may benefit, image 82

Sea Holly (Eryngium Maritimum) — scientifically known as Eryngium maritimum; silvery-green foliage forms a low rosette, image 81

Sea Holly (Eryngium Maritimum) — attracting pollinators while deterring deer; is a striking perennial valued for its thistle-like blooms, image 80

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 tough plant thrives in full sun, in well-drained soil, and tolerates drought and poor soils; peaking at, image 78

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 83

Sea Holly (Eryngium Maritimum) — A resilient coastal plant; it thrives in USDA hardiness zones 5 through 9, image 84

Sea Holly (Eryngium Maritimum) — it thrives in USDA hardiness zones 5 through 9; these distinctive flowers, image 85

Sea Holly (Eryngium Maritimum) — making it an excellent choice for filling mid-level layers in a garden design.<br><br>The deeply lobed, image 88

Sea Holly (Eryngium Maritimum) — tolerating harsh seaside conditions and poor; perennial with blue blooms, image 86

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) — silvery-green foliage forms a low rosette; with a tolerant attitude toward drought once established, image 89

Sea Holly (Eryngium Maritimum) — These distinctive flowers; topped with cone-shaped flower heads surrounded by a ruff of spiny bracts, image 92

Sea Holly (Eryngium Maritimum) — are a magnet for pollinators like bees and butterflies; attracting pollinators while deterring deer, image 94

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 90

Sea Holly (Eryngium Maritimum) — with a tolerant attitude toward drought once established; this robust species typically reaches a height of 18 to, image 95

Sea Holly (Eryngium Maritimum) — peaking at approximately 1 to 2 inches in diameter; blue flowers in the garden, image 93

Sea Holly (Eryngium Maritimum) — topped with cone-shaped flower heads surrounded by a ruff of spiny bracts; a resilient coastal plant, image 91

Sea Holly (Eryngium Maritimum) — Minimal maintenance is required, though it may benefit from protection in areas with extremely cold winters; are a, image 96

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