Category / Eryngium / Sea Hollies

Attractive, Sea Holly plants (Eryngium) are striking ornamental perennials grown for their arresting, thistle-like, silvery or blue tinted flower heads adorned with a ruff of showy bracts. Blooming in summer and sometimes…

Eryngium alpinum ‘Blue Star’ (Alpine Sea Holly) is an erect, herbaceous perennial with basal rosettes of heart-shaped, deeply toothed, glossy leaves. From mid-summer to early fall, sturdy leafy stems, tinged with gray…

Highly ornamental, Eryngium alpinum (Alpine Sea Holly) is an attractive upright perennial with basal rosettes of heart-shaped, deeply toothed, glossy leaves. From mid-summer to early fall, sturdy leafy stems, tinged with soft…

Extremely hardy, Eryngium amethystinum (Amethyst Sea Holly) is a compact perennial with a basal rosette of deeply cut, gray-green leaves, adorned with silver speckles and white veining. From mid to late summer,…

Unlike other species, its deeply lobed, dark green foliage, which appears before the flowers, is elegantly marbled with broad silvery white veins, making it very attractive and luminous. Introducing a bold statement…

Eryngium bourgatii ‘Picos Blue’ (Mediterranean Sea Holly) is a lovely addition to the garden or mixed containers for various reasons. Unlike other species, its deeply lobed, dark green foliage, which appears before…

Perfect for sunny and dry locations! Eryngium bourgatii (Mediterranean Sea Holly) is a lovely addition to the garden or mixed containers for various reasons. Eryngium bourgatii (Mediterranean Sea Holly) is a lovely…

With its luminous spiny collar of silvery-white bracts surrounding an egg-shaped flower head and tightly packed with flowers, initially pale green, then changing to steel-blue, Miss Willmott’s Ghost (Eryngium giganteum) is quite…

Incredibly showy, Eryngium leavenworthii (False Purple Thistle) is a fantastic, prickly annual with a broadly branching stem clothed with deeply lobed leaves edged and tipped with stiff spines. From midsummer to early…

Highly ornamental, Eryngium maritimum (Sea Holly) is a semi-evergreen, clump-forming perennial with rosettes of waxy, spiny, blue-gray leaves adorned with white veins. In summer, the stiff stems boast thistle-like, blue flower heads…

One of the largest of the Eryngiums, Eryngium pandanifolium (Giant Sea Holly) is an evergreen perennial forming a bold rosette of narrowly sword-shaped, spiky-margined, arching, blue-green leaves. From mid-summer to early fall,…

Eryngium Planum ‘Blue Cap’ (Flat Sea Holly) is a clump-forming perennial with a profusion of small, steel-blue flowers, tightly packed into egg-shaped heads, that light up the garden throughout summer. Each flower…

Eryngium Planum ‘Blue Glitter’ (Flat Sea Holly) is an extraordinarily eye-catching perennial with its multitude of glittering steel-blue flowers, tightly packed into egg-shaped heads, that light up the garden throughout summer. Eryngium…

Noted for its petite size, Eryngium planum ‘Blue Hobbit’ (Sea Holly) is a compact perennial boasting a profusion of spiny, egg-shaped, purplish-blue flower heads throughout the summer. They are produced on silver-blue…

Adding stature to the perennial garden, Eryngium Planum ‘White Glitter’ (Flat Sea Holly) is an elegant perennial with a profusion of glistening silvery ivory flowers, tightly packed into egg-shaped heads, that light…