Photo by Melody

PlantFiles: Bachelor's Button, Cornflower
Centaurea cyanus 'Polka Dot Mix'

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Centaurea (sen-TAR-ee-uh) (Info)
Species: cyanus (SY-an-us) (Info)
Cultivar: Polka Dot Mix

3 vendors have this plant for sale.

17 members have or want this plant for trade.

Category:
Annuals

Height:
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing:
9-12 in. (22-30 cm)

Hardiness:
Not Applicable

Sun Exposure:
Full Sun

Danger:
N/A

Bloom Color:
Pink
Rose/Mauve
Medium Blue
Violet/Lavender
White/Near White

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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to view:

By Weezingreens
Thumbnail #1 of Centaurea cyanus by Weezingreens

By htop
Thumbnail #2 of Centaurea cyanus by htop

By Xenomorf
Thumbnail #3 of Centaurea cyanus by Xenomorf

By dalmatian_fan87
Thumbnail #4 of Centaurea cyanus by dalmatian_fan87

By chavelonni
Thumbnail #5 of Centaurea cyanus by chavelonni

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Weezingreens On Aug 31, 2002, Weezingreens from Seward, AK (Zone 3b) wrote:

Polka Dot is a delightful mix of semi-dwarf bachelor's buttons. They bloom in many colors, some bi-colors and earier than many other varieties.

If starting the seeds indoors, be sure to exclude light during germination.

Regional...

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

Seward, Alaska
El Mirage, Arizona
Phoenix, Arizona
Springdale, Arkansas
Citrus Heights, California
Colorado Springs, Colorado
Lincoln, Maine
Halifax, Massachusetts
Harrisburg, Pennsylvania
Selinsgrove, Pennsylvania
San Antonio, Texas
Kalama, Washington



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