Grow Black Oil Sunflowers, a vigorous annual sunflower type known for its bright yellow blooms and dark, oil-rich seeds. These sunflowers are an excellent choice for pollinator gardens, wildlife plantings, sunny borders, and gardeners who want to grow seed heads that can attract birds later in the season.
Why Choose These Seeds
- Produces classic bright yellow sunflower blooms
- Dark, oil-rich seeds are attractive to many seed-eating birds
- Excellent for pollinator and wildlife gardens
- Fast-growing annual for sunny spaces
- Great for borders, naturalized areas, and mass planting
At a Glance
| Plant |
Black Oil Sunflower |
| Order contents |
50 seeds |
| Plant type |
Flowering annual |
| Best for |
Wildlife gardens, pollinator beds, borders, mass plantings |
| Light |
Full sun |
| Mature height |
Approximately 4–7 ft |
| Flower color |
Bright yellow with a dark center |
| Seed type |
Dark, oil-rich sunflower seed |
| Success starts with |
Warm soil, full sun, good drainage, and regular moisture |
How to Start
- Sow seeds directly outdoors after the danger of frost has passed and the soil has warmed.
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Plant seeds about 1 inch deep in loose, well-drained soil.
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Space seeds approximately 6–12 inches apart, depending on how dense you want the planting.
- Keep the soil evenly moist during germination and early growth.
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Germination commonly occurs in approximately 7–14 days.
- Grow in full sun for the strongest stems and best flower production.
- Allow mature flower heads to dry if you want to leave seeds available for birds or collect them after maturity.
Set expectations: Plant height, bloom size, seed production, and maturity time can vary depending on sunlight, soil fertility, moisture, and spacing. Birds may begin feeding on mature seed heads before they are fully dry.
Frequently Asked Questions
What exactly will I receive?
One order contains 50 Black Oil Sunflower seeds.
How long do Black Oil Sunflower seeds take to germinate?
Seeds commonly germinate in approximately 7–14 days under warm, evenly moist conditions.
Do Sunflower seeds need cold stratification?
No. Cold stratification is generally not required.
Are Black Oil Sunflowers good for birds?
Yes. Their dark, oil-rich seeds are highly attractive to many seed-eating garden birds.
Can Black Oil Sunflowers be grown in containers?
Yes, but use a large, deep container and provide full sun, good drainage, and enough space for the plant’s mature height.
