Dynamic is a rare adjective to apply to a plant, but it’s the best we can think of to describe Eryngium. From its leathery lobed leaves to the spiny, decorative bracts that host the flower, the 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 well drained soil in the open sun, and are an arresting addition to the mixed border, especially when planted amidst Rudbeckia, the Achilleas, and grasses.
Distinguished from other Sea Hollies by the intense, steel-blue hue infusing its branched stems, upper leaves, and teasel-shaped flowers, ‘Sapphire Blue’ features huge blossoms nestled in dramatic collarlike bracts. With a stance that’s angular yet erect, this sturdy perennial makes a striking counterpoint to the downy white softness of Salvia argentea. (pp#11,088)
Blooms July – August.
Size: 2-1/4' high x 18" wide.
Hardy to zone 5.
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Other selections in this genus:
- Eryngium alpinum
- Eryngium amethystinum
- Eryngium ‘Big Blue’
- Eryngium bourgatii
- Eryngium planum ‘Blaukappe’
- Eryngium planum ‘Blue Glitter’
- Eryngium planum ‘Blue Hobbit’
- Eryngium planum ‘Silver Salentino’
- Eryngium planum ‘White Glitter’
- Eryngium proteiflorum
- Eryngium variifolium
- Eryngium yuccifolium
- Eryngium x zabelii ‘Jos Eijking’