Corn Cockle (Agrostemma githago)
Description
Corn cockle is an easy-to-grow annual known for its tall, slender stems and beautiful star shaped flowers. Once a staple in grain fields, it’s now a favorite for adding height and pops of color to summer bouquets and displays. Bonus: it thrives in cooler temps, so it’s perfect for cool climates and early plantings!
Details:
Plant type: annual
Height: 24-36”
Site: full sun
Days to maturity: 90-100 days
Plant spacing: 6-9"
Pinch: not necessary
Kids, Pets, and Deer Resistance: non-toxic, deer resistant
Indoor & Pots: not suitable for containers
How to Grow:
Fall planting recommended for zones 6-8. Fall planting creates longer stems and stronger plants.
Transplant (recommended): sow your seeds indoors in trays around 5-7 weeks prior to transplanting them either in spring or fall. Plant the seeds at a depth of ⅛”. To prevent them from getting disturbed, use bottom watering or a misting method.
When it's 3-4 weeks before the first frost, transplant your seedlings into the ground, or use row covers if you’re transplanting before the last frost.
Use horizontal netting to support your plants, as they can easily topple over.
Direct seed: Can also be direct sown in the early spring or early fall.
Germination: 7-14 days at 60-70°F (16-21°C).
Where to plant: Plant in Sun in moist and well-drained soil.
Harvest: Harvest the flowers when one or two blooms on a stem have opened. Right after picking, submerge the bottom few inches of the stems in boiling water for 7 to 10 seconds, or use Quick Dip, then transfer them into cool water. You can expect them to last in a vase for about 5 to 7 days.
Additionally, remove the blooms as they fade. This will keep them producing more flowers.