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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

Knapweed

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

“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' 0"–4' 0" high x 2' 0" wide; hardy to zone 5.

Centaurea ruthenica (P-1329)
Each $7.50
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Other selections in this genus


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Sterling Spring blooming shrubs, plus head-turning Perennials.

Here’s the tall and short of it…

Sterling spring blooming shrubs, all dressed in classy green leaves and crisp white flowers. Viburnum plicatum ‘Summer Snowflake’ is the largest of our featured shrubs, fashioning graceful somewhat horizontal branches adorned with snowy lace caps. Cultivated since 1868, well-loved Spiraea x vanhouttei makes a shapely low maintenance addition to sunny mixed borders, while smaller-statured Deutzia gracilis ‘Nikko' offers a galaxy of dainty white blooms perfect for the rockery, nestled along steps or in a container.

Head turning Perennials

Nearly 65” of rain coupled with chilly spring days spawned a remarkable surge of lush foliar growth, plus spectacular long-lasting flowers in our nursery & garden this year. Spring is always such an exciting time as we watch the multitude of leaves, buds and blooms that seemingly unfurl over night plus the numerous new shoots stretching skyward. Dicentra ‘Gold Heart’s delicate golden foliage glows in dappled shady niches, while the dark leaves of Eupatorium ‘Chocolate’, Astrantia ‘Moulin Rouge's exquisite domes, and the richly colored Sedum ‘Jose Aubergine’ promise to turn more than a few heads in your garden. Perhaps you could let Campanula ‘Blue Waterfall’ cascade down your garden steps, or brighten up a sunny bed with Geum ‘Prinses Juliana’. We hope you’ll make room for a few of these shrubs & perennials. Our extensive display borders which surround the nursery are now open through Colombus Day weekend. Our first guided Saturday Stroll is June 24th., followed by July 15th & 29th. We hope you’ll come visit us this summer.

Digging Dog's June 2017 Newsletter Link"

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“I got my order yesterday and it is planted and looks great.”

~Mark in Oregon


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