Placeholder

Centaurea cyanus 'Red Boy'

Also Known As

  • Cyanus segetum 'Red Boy'
  • Red Boy Bachelor Buttons
  • Red Boy Cornflower

Plant type

annual / biennial

size

  • H: 2'-3'
  • W: 2'

planting zones

  • 1-12

More Options

Centaurea cyanus 'Red Boy' plant details

Centaurea cyanus 'Red Boy' is a broadleaf deciduous annual / biennial with blue and green foliage. In spring and summer red flowers emerge. Attracts birds and 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 'Red Boy'

Plant type: annual / biennial
Plant family: asteraceae
Foliage: deciduous blue and green
Mature size: 0 - 2 FT - wide, 2 FT - 3 FT - tall
Flowers: red blooms in spring and summer
Uses: border plant, cottage garden, cutting garden, easy-to-grow, self-sowing

GROWING CONDITIONS for Centaurea cyanus 'Red Boy'

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

Nursery contributed plant descriptions

A fabulous cut flower that is at home in the veggie garden in rows for easy cutting, the casual wildflower meadow and mixed flower bed. After the bright flowers fade in midsummer, the birds swoop in to devour the ample supply of seeds. Self-sows.

Gardening facts about Centaurea cyanus 'Red Boy' plant

How to Grow Centaurea cyanus 'Red Boy'

  • Sun Exposure

    • sun
  • Water Needs

    • drought tolerant
  • Water Needs

    • dry in summer
  • Soil Needs

    • average
    • well-drained
  • Special Situation

    • heat tolerant

Features

  • Foliage Color

    • green
    • blue
  • Flower Color

    • red
  • Wildlife

    • birds
    • butterflies
  • Flower Season

    • spring
    • summer
  • Foliage Season

    • deciduous

See other plant types of Centaurea for your garden

aka Cornflower

Plant Type

Perennial

Zones

6a-10b

Size

Height: 24"

Width: 12"

  • sun
  • occasional - drought tolerant
Photo of Centaurea orientalis flower by Dancing Oaks Nursery
View Plant

aka Cyanus segetum 'Black Gem', Black Gem Bachelor's Buttons

Plant Type

Annual / Biennial

Zones

1-11

Size

Height: 12"-24"

Width: 6"-12"

  • sun
  • regular - drought tolerant
  • dry in summer
Photo of Centaurea cyanus 'Black Gem' flower, form by Annie's Annuals & Perennials
View Plant

More Options

aka Cyanus segetum 'Blue Diadem', Blue Diadem Bachelor's Buttons

Plant Type

Annual / Biennial

Zones

1-11

Size

Height: 24"-36"

Width: 12"-30"

  • sun - mostly sun
  • occasional - drought tolerant
  • dry in summer
Photo of Centaurea cyanus 'Blue Diadem' flower by Annie's Annuals & Perennials
View Plant

More Options

aka Centaurea scabiosa 'Perennial Butterfly', Greater Knapweed, Perennial Bachelor Button, Perennial Butterfly Cornflower

Plant Type

Perennial

Zones

3a-10b

Size

Height: 2'

Width: 3'

  • sun - mostly sun
  • regular - occasional
Photo of Centaurea scabiosa flower by Annie's Annuals & Perennials
View Plant

aka Centaurea candidissima, Centaurea gymnocarpa, Dusty Miller, Velvet Centaurea, Velvet Centaurea

Plant Type

Shrub, Perennial

Zones

7a-10b

Size

Height: 3'-4'

Width: 8'

  • sun - mostly sun
  • regular - drought tolerant
  • dry in summer
Photo of Centaurea cineraria flower, foliage by Annie's Annuals & Perennials
View Plant

More Options

+38 more Centaurea
Mailing List
Sign Up for updates on new plant arrivals and deals

© 2010—2026 Plant Lust, LLC All Rights Reserved