Botanical Name: Eryngium alpinum 'Blue Star'; Family: Apiaceae (Carrot Family)
Height: 18 - 30 inches.
Spacing: 24 inches.
Depth: Plant crown 1 inch below soil surface.
Spread: 24 inches.
Sun/Shade: Full sun. Tolerates light shade.
Color: Deep blue blossoms.
Foliage: Blue stem and bluish spiny leaves.
Form: Herbaceous perennial. Upright
Flower Form: Egg-shaped blue flower heads.
Soil Requirements: Average, medium wet, well-drained soil. Tolerates poor soils, drought and saline conditions once established.
Growth Rate: Medium growth rate.
Size: 2 inches.
Comments: This sea holly is thistle-like in appearance and will grow up to 30 inches tall on stiff, blue stems. Egg-shaped, metallic-blue flower heads (2 inches long) are surrounded by a collar of 12 - 18 inches, attractive, somewhat soft-to-the-touch, finely-divided, blue-gray bracts which extend outward from the base of each flower head. All foliage has a bluish tinge with lower leaves being heart-shaped and spiny-toothed and upper leaves being palmately-divided. A long-lasting cut flower that also dries well.
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