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Cornflower Centaurea Cyanus Blue Boy

Price range: £1.29 through £12.49

A hardy and eye-catching attractive easily grown cottage garden annual producing an abundance of double sky blue flowers on tall plants. Prefers full sun, well drained soils and is drought resistant. Height 80-100cm.

SKU: Rng_Cornflowers Centaurea Cyanus Blue Boy Categories: , , , ,

Cornflower Centaurea Cyanus Blue Boy

  • Seeds can be started indoors 4 to 6 weeks before last spring frost.
  • Or direct-sow seeds outside after all danger of frost has passed to a depth of 1/8 to ¼ inch, well pressed as darkness aids in germination.
  • Tolerates a variety of soil types.
  • When seedlings are 2 to 3 inches high, thin to 10 to 12 inches apart.
  • Replant thinned plants.

Cornflower Centaurea Cyanus Blue Boy – Key Facts

Days To Germination: 5-10 days
Optimum Soil Temp. for Germination: 60F-70F
Planting Depth: 1/8 to ¼ inch
Spacing, Seed: 3-6 inch
Spacing, Plant: 10 to 12 inches
Plant Height: 24-36 inches
Light:  Full Sun/Partial Shade

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