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Centaurea ruthenica
at Digging Dog

Centaurea ruthenica

By C T Johansson (Own work) ‘CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)’, via Wikimedia Commons



Centaurea’s heritage extends all the way back to ancient Greek mythology when Achilles’s wise teacher, Chiron the Centaur was wounded by one of Hercules’ poisoned arrows and subsequently cured by this herb’s miraculous healing powers.

Equally at home in a present day border or a more naturalized setting, our hardy undemanding selections paint a bright picture inside as well. The long lasting boisterous blooms are celebrated cut flowers, bringing high-spirited accents to both fresh and dried arrangements.

Appreciative of well draining “sweet” soil, the ever amenable Knapweed withstands some drought, but not wet, wintertime feet.

Centaurea ruthenica full sun  new plant

“A border flower of the highest merit,” is how British horticulturist, William Robinson once described this awe-inspiring Centaurea, and we couldn’t agree more! Crowning long straight green stems, the fluffy thistle-style heads in unique pale citron yellows and tissue-thin buff-colored bracts will attract more than a few admirers. These ample-sized, sublime-for-cutting blooms heighten a graceful ferny pedestal of rich green pointed leaves with gray undersides, narrow silhouettes and a refined countenance. Appreciative of adequately draining soil, the ever amenable Knapweed withstands some drought, but not wet winter feet.

Blooms July–September.

Size: 3'–4' high x 2' wide; hardy to zone 5.

Centaurea ruthenica (P-1329)
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Other selections in this genus

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Current Staff’s Favorite Plant

staff favorite plant

Our favorite plant this week: We love Astrantia major 'Lars' for it's ornate, richly colored blooms, that look great in an arrangement, either fresh or dried. Celebrating bright and cheerful colors, crowns of maroon bracts deliver gorgeous cherry red floral mounds with lighter pink centers. ‘Lars’s blooms loll high above broad deep green lobed leaves on slender stems. This energetic Danish cultivar looks a bit like an overly exuberant Italian Flat Parsley and makes an unparalleled up-front cottage-style filler that is easy to care for.

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Customer Comment:

“I ordered a few things and had a pleasant experience. Email communication was prompt. The plants themselves arrived swiftly, were very well packed and were very large and had impressively healthy root systems. I would definitely order from them again.”

~Jess in New Mexico

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