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Centaurea (Knapweed)
at Digging Dog

Including Centaurea atropurpurea, Centaurea hypoleuca, Centaurea macrocephala, Centaurea montana, and Centaurea ruthenica

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.

View a slideshow of plant images from this genus


Centaurea atropurpurea  full sun

Milling about the mountainous meadows of Europe’s Carpathian Range, this garden rarity spotlights large ruby red thistle-styled blooms bolstered by impressively tall sturdy stems. Even before the marvelous flowers appear, intricately detailed buds with brown-tipped green scales and curvy white spines beg a closer glance. A delicate-looking rosette of long feathery leaves—silver-gray and narrowly cut—completes the picture, while yellow blooming Centaurea ruthenica makes an ideal companion.

Blooms June – August.

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

Centaurea atropurpurea (P-1646)
Each $7.50
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Centaurea hypoleuca ‘John Coutts’  full sun
Centaurea hypoleuca John Coutts

Cradled by silvery, paper-thin bracts, a vivacious summertime showing of deep rose-pink thistlelike blooms with pale centers promises a fall encore when deadheaded regularly.

Long green leaves—deeply divided, lobed and powdery white beneath—line stiff-backed stems, bolstering the fragrant high energy performance.

A magnet for butterflies and gardeners alike, this carefree Centaurea exhibits a compact, not-so-tall profile that can be featured atop a wall or near the border’s front, obliges dry soils and keeps us coming back well after the flowers have faded to relish its long lasting, decorative seed heads.

Blooms July–August.

Size: 2' high x 18" wide; hardy to zone 4.

Centaurea hypoleuca ‘John Coutts’ (P-1392)
Each $8.00
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Centaurea macrocephala  full sun
Great Golden Knapweed
Centaurea macrocephala

An overgrown, sun-struck relative of the Bachelor Button, this “big-headed” native of the Caucasus Mountains has so many good qualities you’ll soon be inviting it into your garden. A medium green, rowdy mass of oversized, wavy-edged lanceolate leaves attached to stout stems gives way to intriguing, rust-colored buds as big as a chicken’s egg.

Scaled by papery bracts, the bud’s rotund profile opens to offer a large, bright yellow thistle, a cheerful mop of threadlike petals bursting with sunshine and color. Back this easy-to-grow cut flower with Cotinus ‘Grace’ and surround it with Nepeta ‘Pool Bank’.

Blooms late July–mid-September.

Size: 3'–4' high x 2-1/2' wide; hardy to zone 4.

Centaurea macrocephala (P-0834)
Each $7.50
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Centaurea montana ‘Jordy’  full sun

Ringed with spidery ultra-fringed tubular florets, the dark-as-midnight blooms are presented singularly, strutting sumptuous reddish purple shades on tall staunch stems. Black embroidered buds, intriguing seed heads and silver felted new growth further enhance the tidy clump of broadly lanceolate green leaves that sport minute pearly hairs. A fan of lean chalky sites, this fanciful bloomer appreciates periodic pruning and works best as a filler in a Mediterranean planting, cottage garden or a naturalized setting, where it will bring on the bees, butterflies and other admirers.

Blooms May–June.

Size: 18" high x 18"–2' wide; hardy to zone 3.

Centaurea montana ‘Jordy’ (P-1797)
Each $7.50
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Centaurea ruthenica  full sun  new plant
Centaurea ruthenica

“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.

AVAILABLE LATE AUGUST 2015

Centaurea ruthenica (P-1329)
Each $7.50
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Latest News

Summer Savings at the Nursery

Straight from the Border: Waterwise Tips

Has the drought got you down? Are you thinking about ripping out your lawn or other water thirsty plants? Don't worry! Digging Dog Nursery is recognized by Dave's Garden as one of the top five mail order nurseries for our wide selection of drought tolerant plants. We carry a fabulous variety of Cistus, Euphorbias, Thymes, Sun Roses,  Sedums, Kniphofias, Origanums, Eryngiums, Lavender, and hard to find, lesser known grasses such as Poa cita, Pennisetum, and Schizachryiums.

Consider planting waterwise groundcovers between your existing plants, or positioning plants close together to reduce the amount of exposed soil. This in turn will reduce evaporation. Heavy mulching with organic matter will also conserve and retain moisture. Compost, well rotted manure or humus from a local dairy or vineyard can benefit your garden in several ways: weed suppression, water conservation and fantastic fertilization!

Try to be conscious with your water use, remember that selecting a drought tolerant plant is only the first step. Once it is established, deep and frequent waterings help train the roots to grow down rather than out, preventing crown rot and helping your plant become much more drought tolerant in the long run. If the drought becomes very severe in your area, a hard and aggressive pruning combined with a heavy mulch can work wonders in preserving your precious perennials!

Visit Us

Digging Dog Nursery’s 15th Annual Dog-Gone Super Summer Plant Sale!
July 10, 11 and 12 from 10:00 am to 5:00 pm Discounts of 20% apply to most plants with many drought busting Lavenders, Rosemary and Cistus discounted at 35% off or more! Saturday, July 11th: Enjoy Free Light Refreshments & a 2pm Garden Tour

Summer Sale Ordering Information

Summer Sale Discounts apply ONLY to purchases made AT THE NURSERY. Happy Diggings!

garden tour

If you cannot make it to the Summer Sale feel free to join us for one of our Saturday Strolls.
Enjoy a fun, informative guided tour of our colorful display borders. Sip iced tea & take home great gardening ideas!
They take place from 2:00 pm to 4:30 pm on the following dates:

  • July 25th
  • August 8th and 29th
  • September 12th and 26th
  • October 10th

Saturday Strolls & Plant Chat - August 8

Join us for a fun, informative guided tour of our colorful borders led by Deborah Whigham. Enjoy refreshments and take home great gardening ideas. 2-4:30pm - FREE!

Saturday Strolls & Plant Chat - August 29

Join us for a fun, informative guided tour of our colorful borders led by Deborah Whigham. Enjoy refreshments and take home great gardening ideas. 2-4:30pm - FREE!

Saturday Strolls & Plant Chat - September 12

Join us for a fun, informative guided tour of our colorful borders led by Deborah Whigham. Enjoy refreshments and take home great gardening ideas. 2-4:30pm - FREE!

Saturday Strolls & Plant Chat - September 26

Join us for a fun, informative guided tour of our colorful borders led by Deborah Whigham. Enjoy refreshments and take home great gardening ideas. 2-4:30pm - FREE!

Fall Dog-Gone Super Plant Sale - October 9, 10 & 11

Discover an abundance of easy-to-grow plants, including many rate beauties and water-wise toughies, at a savings! Stroll our delightful display plantings Saturday: light refreshments & guided tour at 2pm October 9, 10 & 11 10am - 5pm

Current Staff’s Favorite Plant

staff favorite plant

We love Geranium 'Buxton's Variety' for it's luminous white eyes. Try pairing it with golden foliage such as Leycesteria formosa 'Golden Lanterns' or Persicaria amplexicaulis 'Golden Arrow'. Each summer this eye catching gem puts on a nonstop show. Large, illuminated white centers with dark stamens highlight captivating spode-blue flowers as they linger just above the luxuriant, slightly mottled foliage. An elegant addition to the border, back ‘Buxton’s Variety’ with Kniphofia ‘Naudes Nek’ and Campanula ‘Loddon Anna’.

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