Centaurea, Bachelor's Button, Cornflower 'Polka Dot Mix'

Centaureacyanus

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Centaurea (sen-TAR-ee-uh)
Species
cyanus (SY-an-us)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing
9-12 in. (22-30 cm)
Hardiness
Not Applicable
Danger
N/A
Bloom Color
Pink
Rose/Mauve
Dark Blue
Lavender
White/Near White
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Annuals
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
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
Propagation Methods
From seed; sow indoors before last frost
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors 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

San Antonio, Texas

Kalama, Washington

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Seward, AK (Zone 3b) | August 2002 | positive

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 vari...Read More

Featured
Imperial Moth
(Eacles imperialis)
Red-winged Blackbird
(Agelaius phoeniceus)
Featured
Imperial Moth
(Eacles imperialis)
Red-winged Blackbird
(Agelaius phoeniceus)