From its leathery lobed leaves to the spiny decorative bracts that host the flower, the dynamic Sea Holly has a sense of movement that is up and out. Excellent in fresh or dried arrangements, the flowers are borne on tall branching stems, and the terminal blooms hold their color while lateral flowers develop, until the entire stem is covered with mature blossoms. Eryngiums love sharp-draining soil in the open sun, and are an arresting addition to the mixed border, especially when planted amidst Rudbeckia, Achillea and grasses.
Smelling like a carrot, looking a bit like a Yucca and once used by pioneers and Native Americans as an antidote to rattlesnake venom, this American tall-grass prairie dweller brandishes bold, lax bluish green rosettes. Characterized by parallel veins, bristly edges and a glaucous finish, the 3 ft. long sword-shaped leaves launch a sculptural wonder of tight-set thistle-style greenish white spheres and pointed ivory bracts held within branched clusters on smooth stiff stems. A low-maintenance perennial that provides fantastic winter interest, Rattlesnake Master obliges dry rocky soil and looks compelling planted with Sesleria heufleriana or Pennisetum spathiolatum.
Size: 3' 0" – 4' 0" high x 18" – 2' 0" wide.
Hardy to zone 3.
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Other selections in this genus:
- Eryngium agavifolium
- Eryngium alpinum
- Eryngium amethystinum
- Eryngium ‘Big Blue’
- Eryngium bourgatii
- Eryngium giganteum
- Eryngium planum ‘Blaukappe’
- Eryngium planum ‘Blue Glitter’
- Eryngium planum ‘Blue Hobbit’
- Eryngium planum ‘Silver Salentino’
- Eryngium planum ‘White Glitter’
- Eryngium proteiflorum
- Eryngium ‘Sapphire Blue’
- Eryngium variifolium
- Eryngium x zabelii ‘Jos Eijking’