The cornflower is a hardy, easy-to-grow annual known for its spectacular bright blue flowers and its ability to thrive in low-maintenance gardens. Blooming throughout the summer, this drought-tolerant plant readily self-seeds, making it an excellent choice for wildflower meadows, cottage gardens, and pollinator-friendly landscapes.

Its edible petals add a touch of color and a mild, slightly sweet flavor to salads, herbal teas, and pastries. Highly attractive to pollinators and ideal for cut flower bouquets, it is both useful and decorative.

Where to grow cornflowers?
Cornflowers thrive in zones 3 to 9, in full sun and well-drained soil. They are perfect for natural meadows, herb gardens, and raised beds, fitting well into both structured and wild gardens.

History and traditional uses
Native to Europe and Asia, cornflowers have long been cultivated for their medicinal, culinary, and ornamental uses. Traditionally, they were used to relieve eye irritation and to color natural remedies. Today, they remain a popular ingredient in herbal teas, edible flower mixes, and decorative bouquets.

Canadian Zone Information

• Zones 8–9: Direct sow in fall or early spring for early blooms.

• Zones 5–7: Start indoors in late winter or direct sow in spring after the last frost.

• Zones 3–4: Direct sow in spring or use a thick mulch to protect young plants during winter.

How to grow and harvest cornflowers

• Sowing: Sow seeds 3 mm (1/8 in) deep, spacing plants 20 to 30 cm (8 to 12 in) apart.

• Watering: Keep the soil slightly moist until plants are established; tolerates drought well once mature.

Harvesting:

• Pick flowers regularly to prolong blooming.

• Harvest petals for fresh use in salads and teas or dry them for later use.

• Maintenance: Allow some plants to self-seed naturally to ensure growth for the following year.

Tips for seed harvesting

• Allow to flower and go to seed: Let some plants form dry seed heads.

• Harvest: Once the heads are brown and dry, harvest them before natural dispersal.

• Drying and cleaning: Remove seeds from their casings and spread them on a surface to dry completely.

• Storage: Store in an airtight container in a cool, dark place; viable for up to 3 years.

Certified organic by
Islands Organics Producers Association (Certificate No. 1962)