How to Grow Cornflowers (UK guide)
Cornflowers (Centaurea cyanus), also known as bachelor's buttons, are iconic wildflowers with striking blue petals that brighten up borders and wild gardens alike. Their ease of growth and ability to attract pollinators make them a favourite among UK gardeners seeking natural charm.
Growing Cornflowers (Centaurea cyanus)
Cornflowers are hardy annuals that flourish in sunny spots with well-drained soil. They require minimal feeding and can adapt to various soil types.
Regular deadheading extends their flowering period from early summer through late summer.
They are also excellent for cutting gardens and wildflower meadows.
For the Bees
Bright blue flowers, attracts pollinators, easy to grow, drought tolerant once established
How to Grow Cornflowers from Seed
- 01Sow cornflower seeds directly outdoors from March to May or September.
- 02Scatter the seeds thinly over prepared, well-drained soil.
- 03Lightly cover seeds with a thin layer of fine soil or vermiculite.
- 04Keep the soil moist but not wet until germination, which takes about 10-14 days.
- 05Thin seedlings to about 15cm apart once established.
You will need
- 01Full sun location
- 02Well-drained soil
- 03Regular deadheading
- 04Protection from waterlogging
Pinching Cornflowers
Pinch out the growing tips of young cornflower plants to encourage bushier growth and more flowers.
Plant Calendar
Growing Needs
Sunlight
Requires full sun to flower profusely.
Soil
Prefers well-drained soil but tolerates poor soil conditions.
Watering
Moderate watering; avoid waterlogged ground.
Cornflowers: FAQs & Common Problems
Cornflowers FAQs
Cornflower seeds can be sown from March to May and again in September. Early sowing indoors helps ensure strong seedlings.
Cornflowers thrive in full sun and prefer well-drained soil. They tolerate poorer soils but avoid waterlogged conditions.
Deadhead spent blooms to encourage continuous flowering and pinching young shoots can promote bushier growth.
Yes, cornflowers attract pollinators such as bees and butterflies, making them excellent for wildlife-friendly gardens.
MEADOW Wild meadow flowers that bring pollinators and wildlife to your garden.
