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widely-arching spurs
Photo of blooms & leaves Matt Lavin from Bozeman
4" tall and slowly spreading
who had the chance to see it at the 2021 Chelsea Garden show in London
Eryngium alpinum 'Blue Star', Sea Holly Size:1.16 qt widely-arching spursE. alpinum cultivar 'Blue Star' has a saturated metallic blue coloration in the thistle like flowers with an eye catching spiny ruff. The flowers are held aloft on stiff stems reaching heights of 2 3 ft. Eryngiums are incredibly hardy, and happily grow in hot and dry conditions. Excellent choice for coastal areas. Clumping perennial. Mature Size: 24 36 in T x 18 in W Minimum temperature: 35 F