Photo by Melody

PlantFiles: Bachelor’s Button, Evergreen Bachelor’s Button, Knapweed
Centaurea bella

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Centaurea (sen-TAR-ee-uh) (Info)
Species: bella (BEL-luh) (Info)

One vendor has this plant for sale.

4 members have or want this plant for trade.


6-12 in. (15-30 cm)

Unknown - Tell us

USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:

Bloom Time:
Unknown - Tell us


Other details:
Unknown - Tell us

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
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By Gabrielle
Thumbnail #1 of Centaurea bella by Gabrielle

By Gabrielle
Thumbnail #2 of Centaurea bella by Gabrielle

By Gabrielle
Thumbnail #3 of Centaurea bella by Gabrielle


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive Gabrielle On Jan 29, 2006, Gabrielle from (Zone 5a) wrote:

I have this in several places in my yard. Where it is doing the absolute best is along the road in a clay and rock mix. To show how bad the conditions are, to dig a hole big enough for the plant, I had to chip out a very small hole, fill it with water, when it FINALLY soaked in, scraped the area out, and repeated the process several times (in 100 degree weather)! Obviously this area doesn't get watered much because run-off is terrible. I did mulch it a little with compost, but because of its location, most got washed away. As you can tell by the photo, it doesn't mind a bit!

Catalog description: 1.5" pink flowers in mid summer on stiff, cobwebby stems. Leaves are green above, tomentose beneath, form a 8-10" cushion. Used for cut flowers and attracts butterflies. Hardy to zone 5.

Blooms late May to mid July in my garden.


This plant has been said to grow in the following regions:

Portsmouth, Rhode Island
Casper, Wyoming

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