When to plant Sunflower in Zone 7a
In Zone 7a, Sunflower: direct sow outdoors around Apr 7–Apr 28. Expect to harvest around Jun 16–Jul 7.
| Step | When |
|---|---|
| Direct sow outdoors | Apr 7 – Apr 28 |
| Harvest | Jun 16 – Jul 7 |
Tip: Direct-sow once frost has passed; sow every two weeks for a long succession of blooms.
Zone 7a averages a last spring frost around Apr 7 and a first fall frost around Nov 2. These are zone averages — look up your ZIP for your exact area.
See the full Zone 7a calendar in the tool →