Cornflower (Centaurea) Macrocephala 25 Flower Seeds.

• Season: Perennial.
• USDA Zones: 2 – 9.
• Height: 36 - 48 inches.
• Bloom Season: Mid summer to early fall.
• Bloom Color: Yellow.
• Environment: Full sun.
• Soil Type: Clay, sandy, normal loam.

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• Temperature: 68F.
• Average Germ Time: 14 - 28 days.
• Light Required: Yes.
• Depth: 1/4 inch.
• Moisture: Keep seeds moist until germination.
• Plant Spacing: 24 inches.