Blue Or False Sea Holly

Eryngium Planum

Design with this plant

Overview

Eryngium planum, commonly known as Blue Sea Holly, is a striking perennial bearing a unique metallic blue hue. Ideal for zones 4-9, it reaches 2 to 3 feet in height and spans 1 to 1.5 feet wide. This drought-tolerant plant thrives in full sun and well-drained soil, producing thistle-like blooms from mid to late summer. Its texture and color add distinct contrast to any garden composition.

Sun FullWater LowZones 2–9Climate Temperate

Blue Or False Sea Holly (Eryngium Planum) — Eryngium planum, commonly known as Blue Sea Holly, is a striking perennial bearing a unique metallic blue hue

Culture

Sun: Full
Water: Low
USDA zones: 2–9

Shape & size

Mature height: 2–3 Ft.
Mature width: 1–2 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 (65)

Blue Or False Sea Holly (Eryngium Planum) — perennial for full

Blue Or False Sea Holly (Eryngium Planum) — Eryngium planum, commonly known as Blue Sea Holly, is a striking perennial bearing a unique metallic, image 25

Blue Or False Sea Holly (Eryngium Planum) — Ideal for zones 4-9, it reaches 2 to 3 feet in height and spans 1 to 1.5 feet wide; thriving in USDA Hardiness

Blue Or False Sea Holly (Eryngium Planum) — This drought-tolerant plant thrives in full sun and well-drained soil; including bees and butterflies

Blue Or False Sea Holly (Eryngium Planum) — producing thistle-like blooms from mid to late summer; eryngium planum, commonly known as Blue Sea Holly, is a

Blue Or False Sea Holly (Eryngium Planum) — Its texture and color add distinct contrast to any garden composition; this hardy plant is characterized by its

Blue Or False Sea Holly (Eryngium Planum) — scientifically known as Eryngium planum; the plant's deep taproot system can make it resilient but also challenging

Blue Or False Sea Holly (Eryngium Planum) — is a striking perennial that offers a unique texture and color to any landscape design; blue flowers in the garden

Blue Or False Sea Holly (Eryngium Planum) — This hardy plant is characterized by its thistle-like; its texture and color add distinct contrast to any garden

Blue Or False Sea Holly (Eryngium Planum) — intense blue to violet flowers; it prefers full sun exposure and flourishes in well-drained soil

Blue Or False Sea Holly (Eryngium Planum) — which are surrounded by spiky; while its spiny foliage deters deer

Blue Or False Sea Holly (Eryngium Planum) — thriving in USDA Hardiness Zones 5 to 9; ideal for zones 4-9, it reaches 2 to 3 feet in height and spans 1 to 1.5

Blue Or False Sea Holly (Eryngium Planum) — It prefers full sun exposure and flourishes in well-drained soil; intense blue to violet flowers

Blue Or False Sea Holly (Eryngium Planum) — tolerating drought conditions once established; so selecting the right location initially is

Blue Or False Sea Holly (Eryngium Planum) — making it a suitable candidate for xeriscaping; perennial with blue blooms

Blue Or False Sea Holly (Eryngium Planum) — The plant's deep taproot system can make it resilient but also challenging to transplant; scientifically known as

Blue Or False Sea Holly (Eryngium Planum) — so selecting the right location initially is important.<br><br>Blooming occurs from early to late summer, image 40

Blue Or False Sea Holly (Eryngium Planum) — and its nectar-rich flowers attract a plethora of pollinators; or as a striking focal point

Blue Or False Sea Holly (Eryngium Planum) — including bees and butterflies; this drought-tolerant plant thrives in full sun and well-drained soil

Blue Or False Sea Holly (Eryngium Planum) — while its spiny foliage deters deer; which are surrounded by spiky

Blue Or False Sea Holly (Eryngium Planum) — or as a striking focal point; and its nectar-rich flowers attract a plethora of pollinators

Blue Or False Sea Holly (Eryngium Planum) — Eryngium planum offers architectural interest and a metallic shimmer; perennial for full

Blue Or False Sea Holly (Eryngium Planum) — blue flowers in the garden; is a striking perennial that offers a unique texture and color to any landscape design

Blue Or False Sea Holly (Eryngium Planum) — perennial for full; eryngium planum offers architectural interest and a metallic shimmer

Related plants

Rattlesnake Master (Eryngium Yuccifolium) — Eryngium yuccifolium, commonly called Rattlesnake Master, is a perennial native to North American prairies

Rattlesnake Master

Eryngium Yuccifolium

Full · Zones 3–8

Cilantro (Coriandrum Sativum) — is esteemed for its pungent

Cilantro

Coriandrum Sativum

Full · Zones 2–11

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

Sea Holly

Eryngium Maritimum

Full · Zones 5–10

Carrot (Daucus Carota) — The feathery foliage reaches 12 inches high

Carrot

Daucus Carota

Full · Zones 1–11

Lawn Marshpennywort (Hydrocotyle Sibthorpioides) — commonly known as Lawn Marshpennywort

Lawn Marshpennywort

Hydrocotyle Sibthorpioides

Full · Zones 6–9

Masterwort (Astrantia Major) — Astrantia major, commonly known as Masterwort, thrives in partial shade, appreciating moist, fertile soil

Masterwort

Astrantia Major

Half · Zones 4–7