Centaurea cyanus 'Emperor William'

Also Known As

Cyanus segetum 'Emperor William'
Emperor William Bachelor's Button
Emperor William Cornflower

Plant type

annual / biennial

size

H: 24"-36"
W: 6"-18"

planting zones

1-12

Centaurea cyanus 'Emperor William' plant details

Centaurea cyanus 'Emperor William' is a broadleaf deciduous annual / biennial with blue and green foliage. In spring and summer blue flowers emerge. Attracts butterflies making it an excellent addition to pollinator gardens. Drought tolerant once established. Prefers to be dry in summer. Does well in average and well-drained soil. A good option if you're seeking something heat tolerant.

CHARACTERISTICS OF Centaurea cyanus 'Emperor William'

Plant type: annual / biennial
Plant family: asteraceae
Foliage: deciduous blue and green
Mature size: 6 IN - 18 IN - wide, 24 IN - 36 IN - tall
Flowers: blue blooms in spring and summer
Uses: border plant, cottage garden, cutting garden, easy-to-grow, long-blooming, self-sowing

GROWING CONDITIONS for Centaurea cyanus 'Emperor William'

USDA Zones: 1 - 12
Sun exposure: sun
Resistant to: heat
Soil needs: average and well-drained

Nursery contributed plant descriptions

Lapis-blue single flowers on an airy plant with silvery green narrow foliage. An heirloom variety referenced in many an early seed list, it makes excellent cut flowers and blooms early summer. Self sows.