Botanical Name: Centaurea cyanus
Native: Europe and Asia
Plant Dimensions: 32"–40" tall
Variety Information: 1" wide single and semi-double flowers in shades of red, rose, pink, and white, including some bicolors.
Exposure: Full sun
Bloom Period: Summer
Attributes: Attracts Pollinators, Cut Flower, Deer Resistant, Drought Tolerant, Edible Flower
When to Sow Outside: RECOMMENDED. 1 to 2 weeks before your average last frost date, or in late summer/fall for blooms the following season. Mild Climates: Sow in fall for winter bloom.
When to Start Inside: 4 to 6 weeks before your average last frost date. Not recommended; does not transplant well. Use biodegradable pots to avoid root disturbance.
Days to Emerge: 7–14 days
Seed Depth: ¼"
Seed Spacing: A group of 3 seeds every 8"–10"
Thinning: When 1"–2" tall, thin to 1 every 8"–10"
Special Care: For optimum germination, chill seed in the refrigerator for 5 days before sowing.