(Alpine Seaholly)

Thistle-like leaves and steel blue stems and flowers makes the alpine seaholly a favorite perennial for gravelly gardens. Eryngium alpinum is a hardy herbaceous perennial native to dry rocky mountain slopes of southeastern Europe, including the Alps. Selection 'Superbum' is particularly vigorous in growth and form and has a dense basal rosette of heart-shaped, course, spiny dark green leaves. In summer it produces plume-like flowers with a barreled cluster of fertile, tiny white or blue...

(Pyrennes Seaholly)

Thistle-like leaves of green and silver, gray-violet stems and silvery blue flowers makes Pyrennes seaholly a refined perennial for gravelly gardens. Eryngium bourgatii is a hardy herbaceous perennial native to dry rocky mountain slopes of the Pyrennes in Spain. It has a basal rosette of rounded, lobed, coarse, spiny dark green leaves with silvery white veins. In summer it produces plume-like flowers with a rounded cluster of fertile, tiny gray-green or blue flowers surrounded by many spiny...

(Miss Willmott's Ghost, Seaholly)

Thistle-like leaves and blue flowers with starry collars of silvery green makes Mrs. Willmott's ghost, or seaholly a favorite perennial for sunny gardens. Eryngium giganteum is a hardy herbaceous biennial native to the moist, well-drained soils of Iran and the Caucasus of extreme westcentral Asia. It has a dense basal rosette of heart-shaped, coarse, spiny and teethed green leaves iwth white edges and veins. In summer it produces starry flowers with a barreled cluster of fertile, tiny blue...

(Leavenworth's Eryngo, Texas Seaholly)

Pineapple-like flowers that blush from green to rich violet-purple in very late summer makes Leavenworth eryngo one of America's most vibrant dryland wildflowers. Eryngium leavenworthii is an annual native to dry prairie soils across Texas and into Oklahoma and Arkansas. The plant has a basal rosette of oblong, coarse, spiny-lobed green leaves. In midsummer it produces pineapple-like flowers with a barreled cluster of green buds with a tuft of spiny leaves atop a tall branching stem. By...

(Blue Eryngo, Flat Seaholly)

Evergreen thistle-like leaves and steel blue flowers makes the flat seaholly or blue eryngo a favorite perennial for sunny, gravelly gardens. Eryngium planum is a hardy herbaceous perennial native to dry rocky mountain slopes of southeastern Europe to central Asia. It has a dense basal rosette of heart-shaped, coarse, spiny dark green leaves that are leathery. In summer it produces plume-like flowers with a barreled cluster of fertile, tiny pale blue flowers surrounded by many spiny bracts...

(Blue Eryngo, Blue Glitter Eryngo, Blue Glitter Seaholly)

Evergreen thistle-like leaves and glistening steel blue flowers makes the Blue Glitter seaholly or blue eryngo a favorite perennial for sunny, gravelly gardens. Eryngium planum is a hardy herbaceous perennial native to dry rocky mountain slopes of southeastern Europe to central Asia. A selection from the growers at Ernst Benary in Germany, 'Blue Glitter' has a dense basal rosette of heart-shaped, coarse, spiny dark green leaves that are leathery. In summer it produces plume-like flowers...

(Blue Eryngo, Blue Hobbit Eryngo, Blue Hobbit Seaholly)

Evergreen thistle-like leaves and steel blue flowers makes the dwarf Blue Hobbit seaholly or blue eryngo a favorite perennial for sunny, gravelly gardens and containers. Eryngium planum is a hardy herbaceous perennial native to dry rocky mountain slopes of southeastern Europe to central Asia. It has a dense basal rosette of heart-shaped, spiny dark green leaves that are leathery. In summer 'Blue Hobbit' is covered in plume-like flowers with a barreled cluster of fertile, tiny pale blue...

(Blue Eryngo, White Glitter Eryngo, White Glitter Seaholly)

Evergreen thistle-like leaves and glistening silvery ivory flowers makes the White Glitter seaholly a favorite perennial for sunny, gravelly gardens. Eryngium planum is a hardy herbaceous perennial native to dry rocky mountain slopes of southeastern Europe to central Asia. A selection from the growers at Ernst Benary in Germany, 'White Glitter' has a dense basal rosette of heart-shaped, coarse, spiny dark green leaves that are leathery. In summer it produces pincushion-like flowers with...

(Moroccan Seaholly)

The evergreen Eryngium variifolium is a hardy herbaceous perennial native to Morocco and other parts of North Africa. Moroccon seaholly is distinguished by its dense basal rosette of oblong, course, spiny dark green leaves with silvery veins. In summer it produces thistle-like flowers with a conical cluster of fertile flowers surrounded by five to seven spiny bracts of silvery white to silvery-blue. The long-lasting flowers are borne atop compact branched stems and are highly attractive...

(Miss Marble Seaholly, Moroccan Seaholly)

The compact and heavy-blooming ‘Miss Marble’ has bluer flowers than your average Eryngium variifolium and pretty, more rounded leaves that look great all year around.

This evergreen hardy herbaceous perennial originates from Morocco and other parts of North Africa, so you know it can take heat and drought. Moroccon seaholly is distinguished by its dense basal rosette of oblong, course, spiny dark green leaves with paler veins. In summer it produces thistle-like flowers with a conical...