Eryngium alpinum 'Superbum'

Alpine Sea Holly, Sea Holly

Their tall, striking foliage and thistlelike clusters of flowers make them a favorite border or rock garden plant. Many are drought-tolerant. The summer-blooming, soft blossoms harden in prickly, long-lasting cut and dried flowers. Tops of flower spikes bloom first, while flowers on lower, side-branching stems bloom later. The blue flowers have thimblelike domes surrounded by steel-blue, petallike leaves. Need full sun and good drainage. Start by root cuttings, as they do not like transplanting, or by seed. Space plants about 1 foot apart.
Eryngium alpinum, Alpine Sea Holly, Sea Holly
One of the showiest Sea Hollies, its stout blue stems hold large, steel-blue flowers and bluish, leathery, toothed leaves.

Attributes - Eryngium alpinum 'Superbum'

Plant Type: Perennial

Bloom Season: Early Summer through Mid Summer

Flower Color: Blue, Purple

Foliage: Semi-Deciduous

Height: 2 ft. to 3 ft.

Width: 1 ft. 6 in.

Sunlight: Full Sun

Climate: Zones 4, 5, 6, 7, 8, 9

Notes: Thrives in Alkaline Soil, Dry Climates. Cut Flowers, Drought Tolerant, Long Blooming.

Related Plants

Eryngium amethystinum, Eryngium giganteum, Eryngium giganteum 'Miss Wilmot's Ghost', Eryngium maritimum, Eryngium yuccifolium
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