Centaurea 'Black Ball' (Cornflower) Seeds
Centaurea 'Black Ball' (Cornflower) Seeds
Centaurea 'Black Ball' (Cornflower) Seeds
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Centaurea 'Black Ball' (Cornflower) Seeds


This showy annual is grown for its almost black flowers. The deep purple-black ruffled flowers take on an almost papery appearance, and are produced on long, semi-leafless stems. This makes an excellent cut flower, and also draws wildlife to the garden by being a strong pollinator attractant.

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  • Further Information
Common Name: Cornflower
Plant Type: Hardy Annual
Height: 1.1m
Spread: 40cm
Sowing/Flowering Info:
Feb-April, sow under cover in trays or modules onto the surface of moist compost. Cover very finely with seed compost or vermiculite. March-May, sow outdoors in drills just 3-4mm deep. Plant out or thin to 15cm between plants. Can be sown under cover August-Sep and overwintered for stronger plants the following spring.
Aftercare:
Avoid feeding as this will increase foliage and reduce flowers. Deadhead regularly to prolong flowering.
J F M A M J J A S O N D
J F M A M J J A S O N D
Sow (in)
Sow (out)
Flower
Harvest
Avg. Seeds/Pack: 300

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