Cornflower – Centaurea cyanus ‘Black Ball’

Black cornflower seeds for your cutting garden

Not your classic bright blue cornflower but now in a very beautiful dark color. 
As a hardy annual, cornflowers benefit greatly from sheltered sowing in a cold greenhouse/conservatory in autumn. This results in taller, sturdier plants in spring. But you can of course also sow them in spring. It is hardy and can withstand frost.

Feel free to keep cutting this plant; this way you always have new stems. The bees love it too. 

✨ Features

• Botanical name: Centaurea cyanus ‘Black Ball’

• Dutch name: Black cornflower

• Type: Annual (hardy)

• Height: 75 cm to 140 cm

• Location: Full sun

• Contents: approx. 60 seeds

🌱 Sowing & care

• Sowing period:

  • Pre-sowing: Autumn sowing until October or from late February. Direct sowing: from April to June
    

• Sowing method: Sow thinly, lightly cover with soil, germinates in 7–14 days at 15–18°C

• Transplanting: After hardening off, at 21 cm distance

• Location: Sunny spot, well-draining soil

• Care: Low maintenance, drought tolerant, regular picking or pinching extends the blooming period

Tip from Chrisje

Sow in autumn for extra early blooming in spring. The young plants are surprisingly hardy and start growing rapidly as soon as the spring sun appears!