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Florist Blue Boy Centaurea

Centaurea cyanus


Also known as Bachelor’s Buttons or Cornflower. A native of Europe, they were brought to America in the 17th century and have been loved by gardeners for their periwinkle blue flowers since. Tuck them among annuals, perennials or even in the veggie garden where the intense blue flowers can be used for cutting or for an edible garnish. The 1-2” flowers bloom non stop, attracting beneficials from midsummer on.     

100 seeds





Germination:  7-14 days

Seed Planting Depth:  Lightly cover seed

Starting Indoors:  Start indoors 4-6 weeks before the last frost. Provide 65-70 degree F soil temperature. Transplant into the garden after the last frost. Water seedlings regularly until established. 

Outside Sowing: Mid spring, succession sowing every 2 weeks will extend the bloom time. Autumn sowing for earlier flowers the following season.

Growth Habit: Upright

Height and Width:  2-3 feet

Spacing: 2-6" apart

Light Needs :  Full sun

Soil Needs : Average, well drained

Approximate days to flower from seed:  65-70 days

Uses:  Borders and beds, containers, wildflower and cottage gardens, edible flowers, attracts butterflies and beneficials, cut and dried flowers.

Care:  Deadheading prolongs flowering

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