Cornflower Seeds

close up of vibrant blue frilly cornflower petals with bright green stems lying on a grey surface with a circle of seeds

Fast Facts

BOTANICAL NAME
Centaurea cyanus
WATER NEEDS
Average
LIGHT REQUIREMENT
Full Sun to Partial Shade
PLANTING SEASON
Spring
BLOOM SEASON
Spring through Summer

About Cornflower

Cornflower, also called bachelor’s button, offers brilliantly colored, soft and frilly double blossoms with fringed petals and delicate gray-green feather-like foliage. It is widely cultivated in North America as a garden plant with blooms that are commonly used as fresh or dried flowers in bouquets.

When to Plant Cornflower Seeds

The best time to plant cornflower seeds is in the spring after the last frost has passed. This is usually around early to mid-spring, depending on your location. Cornflowers are hardy annuals and can tolerate cooler temperatures, but they don’t like frost. It’s important to wait until the threat of frost has passed before planting the seeds.

If planted in the early fall in milder climates that don’t necessarily freeze, the plants will grow and flower at that time.

Where to Plant Cornflower Seeds

Cornflower will thrive in full-sun conditions but is also tolerant of partial shade. Select an area with good, well-draining soil before you get started. Cornflower grows up to three feet tall, so plan accordingly in a space where you would like to see a mid-height flower.

How to Plant Cornflower Seeds

Broadcast sow your seeds directly onto the surface of the soil. Compress the seeds, but leave them uncovered. Learn more about germination light requirements here. Once plants have germinated, thin them out to a spacing of 8 to 12 inches between plants. There’s no need to thin for a more natural meadow look.

How to Care for Cornflower

Keep your soil moist. Also, while cornflower will tolerate drought conditions, watering during drier periods will help improve flowering. Once the flowers have died back for the season, cut down your growth and remove the debris from the planting area.

How to Plant & Grow Cornflower – Video Tutorial

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Variety Specific Planting Guides

SEEDY SAYS

You can also call me bachelor’s button—I’m that cute!

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