How long does sunflower seeds take to germinate? (with overnight pre-soaking)
Short answer
5-7 days
A soak can speed sprouting.
What changes the time
| Condition | Time | Why |
|---|---|---|
| in cool soil | up to 2 weeks | Sunflowers like soil above about 18C. |
| with overnight pre-soaking | 5-7 days | A soak can speed sprouting. |
Tips
- Sow when soil is warm for fast, even germination.
FAQ
Why are my sunflower seeds not sprouting?
Usually soil that is too cold or too dry.