digging dog nursery mendocino coast   garden perennials from digging dog nursery

Eryngium planum ‘Blaukappe’
at Digging Dog

Eryngium planum Blaukappe

Eryngium

Sea Holly

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.

Eryngium planum ‘Blaukappe’ full sun

With silvered, narrow spiky ruffs that cradle metallic blue round flower heads, ‘Blaukappe’ makes a sterling addition to dried or fresh bouquets. The vividly colored “blue caps” crest stiff-branched, sturdy bluish stems arising from a handsome green basal rosette of coarsely toothed, rounded and leathery foliage. Let its fantastic mercury-hued accents temper the bronzed blades of Stipa arundinacea.

Blooms June–September.

Size: 2'–2-1/4' high x 18" wide; hardy to zone 4.

Eryngium planum ‘Blaukappe’ (P-0159)
Each $7.00
Add to Cart



Other selections in this genus


Latest News

Saturday Stroll & Plant Chat

Sip lemonade & take home great gardening tips!
August 23
2-4:30 FREE!

Saturday Stroll & Plant Chat

Sip lemonade & take home great gardening tips!
September 6
2-4:30 FREE!

Current Staff’s Favorite Plant

staff favorite plant

Zak's pick is Origanum 'Bristol Cross' (P-1277)

The Greeks called this ancient herb oros ganos, meaning “joy of the mountain,” and legend has it that Aphrodite created the sweet, spicy scent of its leaves as a symbol of happiness. A sun-loving genus hailing from the Mediterranean, Origanums display small, tubular, whorled flowers often arranged in showy overlapping bracts, and prefer well drained soil.

"It's one of my favorite low-growing Origanums. It's perfect for edging a pathway and the profuse spires of lavender pink never fail to draw my eyes, …..and the bees!" -Zak

More news, events, and favorite plants


Customer Comment:

“Plants arrived today in good condition. Ingenious packaging!  Thanks for good instructions and sending healthy plants in good medium.”

~Rosie in California


view our comments page

view Digging Dog's comments with Dave’s Garden (The Garden Watchdog)


Visit our
Facebook Page: