Agrostemma - Key Growing Information
DAYS TO GERMINATION: 7-14 days at 60-70°F (16-21°C)
SOWING: Direct seed (recommended) - As soon as the soil can be worked. Sow 1/8" deep. Thin to stand 6-9" apart when first true leaves appear. Transplant - Sow 4-5 weeks before last frost. Sow at 2-3 week intervals until midsummer for continuous bloom. Performs best in cool weather. Corn cockle blooms July to August from an early May sowing.
LIGHT PREFERENCE: Sun.
PLANT HEIGHT: 24-36".
PLANT SPACING: 6-9".
HARDINESS ZONES: Annual.
HARVEST: Fresh - 1 to 2 flowers in a spray are open.
SOIL: Rich, well-drained soil.
SCIENTIFIC NAME: Agrostemma githago
ALTERNATE NAME: Corn cockle