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Sea Storm' (Storm Series) An evergreen, clump-forming herbaceous perennial with strap-like mid-green leaves and sturdy stems which produce panicles of trumpet-shaped violet-blue flowers in summer, with a darker midrib down the centre of each petal
Flowers late spring to late summer
These dramatic sun-loving border plants produce large spherical flowerheads, usually in beautiful shades of blue, from midsummer onwards. These sway on tall stems above clumps of strappy foliage. Some types, especially the evergreens, may not be fully hardy, so are best grown in containers that can be protected from frost over winter