Skip to content

Sea Holly

Eryngium Maritimum

Design with this plant

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

See full data, regional cultivation notes, full-resolution photos, and design tools. Build a client presentation around this plant.

Start your 14-day trial

Photos (117)

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 52
Sea Holly (Eryngium Maritimum) — Sea Holly, or Eryngium maritimum, is a striking perennial suitable for coastal themes; its unique texture and, image 51
Sea Holly (Eryngium Maritimum) — perennial for full; with its bold form and captivating color
Sea Holly (Eryngium Maritimum) — perennial with blue blooms; branched stems rise in summer
Sea Holly (Eryngium Maritimum) — This tough plant thrives in full sun, in well-drained soil, and tolerates drought and poor soils; peaking at, image 53
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) — tolerating harsh seaside conditions and poor; perennial with blue blooms, image 61
Sea Holly (Eryngium Maritimum) — Its unique texture and structure add visual interest from summer to early fall; perennial for full, image 54
Sea Holly (Eryngium Maritimum) — attracting pollinators while deterring deer; is a striking perennial valued for its thistle-like blooms, image 55
Sea Holly (Eryngium Maritimum) — it thrives in USDA hardiness zones 5 through 9; these distinctive flowers, image 60
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 58
Sea Holly (Eryngium Maritimum) — A resilient coastal plant; it thrives in USDA hardiness zones 5 through 9, image 59
Sea Holly (Eryngium Maritimum) — scientifically known as Eryngium maritimum; silvery-green foliage forms a low rosette, image 56
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
Sea Holly (Eryngium Maritimum) — topped with cone-shaped flower heads surrounded by a ruff of spiny bracts; a resilient coastal plant, image 66
Sea Holly (Eryngium Maritimum) — with a tolerant attitude toward drought once established; this robust species typically reaches a height of 18 to, image 70
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) — silvery-green foliage forms a low rosette; with a tolerant attitude toward drought once established, image 64
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) — peaking at approximately 1 to 2 inches in diameter; blue flowers in the garden, image 68
Sea Holly (Eryngium Maritimum) — are a magnet for pollinators like bees and butterflies; attracting pollinators while deterring deer, image 69
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) — With its bold form and captivating color; sea Holly, or Eryngium maritimum, is a striking perennial suitable for, image 72
Sea Holly (Eryngium Maritimum) — perennial for full; with its bold form and captivating color, image 75

Related plants