Thriving in full sun and well-drained soil, Corncockle is an easy and rewarding annual wildflower to grow. It germinates readily and flowers generously from early to mid-summer, adding splashes of rosy colour to annual mixes and garden edges. Although it completes its life cycle within one season, it often self-seeds, returning when the soil is disturbed. Its long stems and delicate blooms also make it a delightful addition to informal cut-flower arrangements.
How tall does Corncockle grow?
Corncockle usually reaches 60–90 cm, creating tall, airy stems that blend beautifully with other meadow plants.
Is Corncockle safe to grow?
Like many traditional arable wildflowers, all parts of the plant are considered poisonous if eaten. It’s perfectly safe to grow ornamentally, but shouldn’t be consumed.
Does Corncockle do well in wildflower mixes?
Yes, Corncockle seeds are commonly included in cornfield annual mixtures, where it offers quick colour and a classic countryside feel.
Will it flower in its first year?
It will, Corncockle is an annual species and moves quickly from seedling to bloom, usually within 60-90 days of sowing.
Can I collect the seeds?
Absolutely, once the seed pods dry and turn a pale brown, the Corncockle seeds can be harvested and stored for use the following spring or autumn.
Is it suitable for cut flowers?
Yes, its slender stems and soft blooms look lovely in loose, informal bouquets, though they’re best used soon after cutting.
How much space does it need?
Give each plant a little breathing room. If sowing in trays, try and give each seed space to establish and then plant seedlings out with 5-10cm gap between each. This helps them form tall, elegant stems without crowding.
Does it tolerate poor soil?
Very well, Corncockle evolved in low-fertility arable fields, so it’s happiest in lean, well-drained ground.
When to sow: Autumn or spring
Lifecycle: Annual
Where it grows well: Sunny, well-drained borders, meadows, and cornfield annual mixes
Also known as: Crown of the Field, Purple Cockle, Field Cockle