Cosmos Seeds
Cosmos bipinnatus
Grow Cosmos from seed.
Sowing guide
- Difficulty: beginner
- Sowing depth: 5 mm
- Method: Direct sow where it is to grow
- Germination: 7-14 days
- Best sown in: spring, summer
- Seed storage life: 3 years
- Packet: approx. 60 seeds
When to sow by region
Prefer to skip the wait? See the full plant — including potted and advanced sizes, care and growing conditions — on the Cosmos plant page.