Botanical Name: Eryngium alpinum 'Blue Star'; Family: Apiaceae (Carrot Family)
Height: 18-30 inches.
Spacing: 24 inches.
Depth: Plant crown 1" below soil surface.
Spread: 24 inches.
Sun/Shade: Full sun. Tolerates light shade.
Color: Deep blue.
Foliage: Blue stem and bluish spiny leaves.
Flower Form: Egg shaped blue flower heads.
Soil Requirements: Average, medium wet, well drained soil. Tolerates poor soils, drought and saline conditions.
Growth Rate: Up to 24 inches.
Size: 2 inches.
Comments: This sea holly is thistle-like in appearance and will grow up to 30" tall on stiff, blue stems. Egg-shaped, metallic blue flower heads (2" 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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