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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) — it thrives in USDA hardiness zones 5 through 9; these distinctive flowers, image 110

Sea Holly (Eryngium Maritimum) — silvery-green foliage forms a low rosette; with a tolerant attitude toward drought once established

Sea Holly (Eryngium Maritimum) — With its bold form and captivating color

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 up to 18

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 62

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) — topped with cone-shaped flower heads surrounded by a ruff of spiny bracts; a resilient coastal plant

Sea Holly (Eryngium Maritimum) — With its bold form and captivating color; sea Holly, or Eryngium maritimum, is a striking perennial suitable for, image 72

Sea Holly (Eryngium Maritimum) — With its bold form and captivating color; sea Holly, or Eryngium maritimum, is a striking perennial suitable for coastal themes

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

Sea Holly (Eryngium Maritimum) — perennial for full; with its bold form and captivating color

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

Sea Holly (Eryngium Maritimum) — making it an excellent choice for filling mid-level layers in a garden design.<br><br>The deeply lobed, image 38

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

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

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

Sea Holly (Eryngium Maritimum) — These distinctive flowers; topped with cone-shaped flower heads surrounded by a ruff of spiny bracts, image 67

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) — which add a unique texture and a touch of steel blue to the landscape

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

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

Sea Holly (Eryngium Maritimum) — with a tolerant attitude toward drought once established; this robust species typically reaches a height of 18 to 24 inches

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

Sea Holly (Eryngium Maritimum) — making it an excellent choice for filling mid-level layers in a garden design.<br><br>The deeply lobed, image 63

Photographs by 17 contributors

Josep Gesti, CC BY-SA 4.0 · source
aroche, CC BY 4.0 · source
Malte, CC BY 3.0 · source
Tony Hisgett from Birmingham, UK, CC BY 2.0 · source
Alberto Capuano, CC BY 4.0 · source
Marcel Hospers, CC BY-SA 4.0 · source
Agnieszka Kwiecień, Nova, CC BY-SA 4.0 · source
Vengolis, CC BY 3.0 · source
Salicyna, CC BY-SA 4.0 · source
Luis Miguel Bugallo Sánchez (Lmbuga), CC BY-SA 3.0 · source
muffinn from Worcester, UK, CC BY 2.0 · source
Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 · source
Rudolphous, CC BY-SA 4.0 · source
Yves Bas, CC BY 4.0 · source
Jean-Michel Moullec from Vern sur Seiche…, CC BY 2.0 · source
Paulo Martins, CC BY-SA 4.0 · source
gnomonic, CC BY 2.0 · source

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