Cornflower Centaurea Cyanus Blue Boy

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.

SKU: Rng_390829393871 Categories: Cornflower Seeds, Flower Seeds

Cultivation Advice

Cornflower Centaurea Cyanus Blue Boy

Cornflower Centaurea Cyanus Blue Boy. 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.

Cultivation Advice Cornflower Centaurea Cyanus Blue Boy

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

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.