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Blue Or False Sea Holly

Eryngium Planum

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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
Blue Or False Sea Holly (Eryngium Planum) — Eryngium planum, commonly known as Blue Sea Holly, is a striking perennial bearing a unique metallic blue hueBlue 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 wideBlue Or False Sea Holly (Eryngium Planum) — This drought-tolerant plant thrives in full sun and well-drained soilBlue Or False Sea Holly (Eryngium Planum) — producing thistle-like blooms from mid to late summerBlue Or False Sea Holly (Eryngium Planum) — Its texture and color add distinct contrast to any garden compositionBlue Or False Sea Holly (Eryngium Planum) — scientifically known as Eryngium planum+58

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

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Photos (65)

Blue Or False Sea Holly (Eryngium Planum) — perennial with blue blooms; making it a suitable candidate for xeriscaping
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
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
Blue Or False Sea Holly (Eryngium Planum) — This drought-tolerant plant thrives in full sun and well-drained soil
Blue Or False Sea Holly (Eryngium Planum) — producing thistle-like blooms from mid to late summer
Blue Or False Sea Holly (Eryngium Planum) — Its texture and color add distinct contrast to any garden composition
Blue Or False Sea Holly (Eryngium Planum) — scientifically known as Eryngium planum
Blue Or False Sea Holly (Eryngium Planum) — is a striking perennial that offers a unique texture and color to any landscape design
Blue Or False Sea Holly (Eryngium Planum) — This hardy plant is characterized by its thistle-like
Blue Or False Sea Holly (Eryngium Planum) — intense blue to violet flowers
Blue Or False Sea Holly (Eryngium Planum) — which are surrounded by spiky
Blue Or False Sea Holly (Eryngium Planum) — thriving in USDA Hardiness Zones 5 to 9
Blue Or False Sea Holly (Eryngium Planum) — It prefers full sun exposure and flourishes in well-drained soil
Blue Or False Sea Holly (Eryngium Planum) — tolerating drought conditions once established
Blue Or False Sea Holly (Eryngium Planum) — making it a suitable candidate for xeriscaping
Blue Or False Sea Holly (Eryngium Planum) — The plant's deep taproot system can make it resilient but also challenging to transplant
Blue Or False Sea Holly (Eryngium Planum) — so selecting the right location initially is important.<br><br>Blooming occurs from early to late summer
Blue Or False Sea Holly (Eryngium Planum) — and its nectar-rich flowers attract a plethora of pollinators
Blue Or False Sea Holly (Eryngium Planum) — including bees and butterflies
Blue Or False Sea Holly (Eryngium Planum) — while its spiny foliage deters deer
Blue Or False Sea Holly (Eryngium Planum) — or as a striking focal point
Blue Or False Sea Holly (Eryngium Planum) — Eryngium planum offers architectural interest and a metallic shimmer
Blue Or False Sea Holly (Eryngium Planum) — blue flowers in the garden
Blue Or False Sea Holly (Eryngium Planum) — perennial with blue blooms

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