(Centaurea cyanus). Annual. Bachelor's Button Tall Blue Cornflower is one of the most popular wildflower seed varieties in the United States. These dazzling sky blue flowers are attractive to bees and look great as a border. A hardy annual that does well in most zones and is an ideal choice in cut arrangements.
One of the easiest flowers to sow from seed. Prefers full sun and well-drained soil.
|Germination Temperature||Planting Depth||Days to Germination||Plant Spacing||Row Spacing||Sun|
|65-75||1/8"||7-21||25 seeds p/sq ft.||Thin as needed||Full|
Sow outdoors 1-2 weeks after average last frost. Broadcast mixture evenly over area. Lightly rake seed and gently tamp into soil. Seed should be no deeper than 1/8".
Prefers average, well-drained soil.
Keep area moist to aid germination.
Plant in late spring, after last frost, early summer or fall. Fall seeding can be very successful, especially in dry soils. Fall plantings will germinate the following spring.