Sunflower in Zone 10a
Helianthus annuus
Method: Direct sow — Direct-sow outside — Sunflower doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Jan 30–Feb 6 |
| Estimated bloom | ~80 days after direct-sowing |
Spacing: about 2 square feet per plant (square-foot-gardening spacing).
Good companions
- Bush Beans — Sturdy stalk can serve as a living trellis for pole beans once well established.
- Cucumber — Sturdy stalk can serve as a living trellis for climbing cucumbers.
Where to buy sunflower seeds
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See it growing
Search YouTube for "growing sunflower" videos → (a live search, not a hand-picked video — results vary and aren't vetted by us)
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