Cornflower Centaurea Cyanus Black Ball Drought Resistant Garden Flower Plant Seed

Cornflower Seeds - Black

Flower Specifications

Season: Annual

USDA Zones: 3 - 10

Height: 32 inches

Bloom Season: Late spring to early fall

Bloom Color: Black

Environment: Full sun to partial shade

Soil Type: Well-drained, pH 6.6 - 7.8

Deer Resistant: Yes

House Plant: No

Latin Name: Centaurea Cyanus

Planting Directions

Temperature: 65F

Average Germ Time: 14 - 21 days

Light Required: No

Depth: 1/4 inch

Sowing Rate: 10 - 12 seeds per plant or 6 seeds per foot

Moisture: Keep seeds moist until germination

Plant Spacing: 6 - 12 inches

Cornflower (Centaurea Cyanus Tall Double Ball Black) - Easy-to-grow from seeds, this tall annual makes a great addition to the summer border. The color is a deep, rich claret which is as close to black as possible. Centaurea Cyanus Black Ball certainly adds drama! Cornflowers are especially nice in traditional cottage gardens, and they make an excellent cut flower. Also known as Bachelor's Button Black Ball, these flowers are native to much of the United States.

Bachelor's Button plants prefer full sun in mild climates and partial shade in the hottest regions. They tolerate a wide variety of soils as long as it drains well. Centaurea Cyanus performs the best in mild climates with moderate water, but the plants can tolerate drought. Cornflowers are very attractive to both bees and butterflies, but fortunately deer leave the plants alone.

Directly sow seeds outdoors in early spring as soon as soil can be worked. Prepare seedbed by loosening soil and weeding. Sow the flower seed in rows ensuring you sow at least 6 seeds per foot. Thin young plants to 6 - 12 inches apart. In mild winter climates, seed can be sown in the fall for very early blooms the following spring. Cornflowers will drop their mature seeds and often self-sow providing climate conditions work out.

Classic Annual

Cornflower is an easily recognized garden flower, and is a common component in wildflower seed mixes.

Classic Annual

Dainty Blooms

How to Grow

Bachelor's Button flowers are not picky about soil types as long as it drains well. They prefer full sun and will withstand periods of drought. Directly sow seed outdoors in early spring as soon as soil can be worked. Prepare seedbed by loosening soil and weeding. Broadcast seed and rake into the soil, covering the wild flower seed. Bachelor's Button seed can also be sown in late fall, after several frosts. It will lay on the ground dormant until spring conditions bring on germination.

  • Environment: full sun to partial shade
  • Soil: well-drained w' pH 6.6-7.8
  • Sowing rate: 10-12 seeds per plant
Dainty Blooms

Plant Specifications

Cornflower is an annual flowering plant that grows in USDA zones 3 through 10. It is a popular wildflower that is native to Europe and is effective at attracting various pollinators, including butterflies.

  • Bloom color: dark claret
  • Bloom season: late spring to early fall
  • Plant height: 32 inches