Welcome to Seeds to Sow
Cart 0

Cornflower - Black Ball


A typical cottage garden annual flower, Cornflower Black Ball is easy to grow and produces lots of beautiful, dark crimson (almost black in a certain light) blooms. Loved by pollinators, this variety loves full sun. A cut and come again flower that can be used for any arrangement and can also be dried. Height 90cm. 

When to sow March - April and September - October. 
Where to sow In early autumn surface-sow in trays of good seed compost and over-winter in a cold frame or greenhouse, thinning out and potting on as they grow. These can be planted out in spring and produce early flowers. Alternatively, shallow-sow directly into a well-prepared seedbed in spring, thinning out to 15cm. 
What to do next Water well until established.
Once the cornflower have finished flowering, leave a few plants to die down and self seed. Others can be pulled up and composted.
This plant will produce more flowers when grown in poor soils, so don’t over-fertilise. Pinching out the growing tips will encourage bushier growth.
Flowering period June to August.

More from this collection