When to plant Sweet Corn in Zone 6a
In Zone 6a, Sweet Corn: direct sow outdoors around Apr 21–May 12. Expect to harvest around Jul 5–Jul 26.
| Step | When |
|---|---|
| Direct sow outdoors | Apr 21 – May 12 |
| Harvest | Jul 5 – Jul 26 |
Tip: Sow in blocks (not single rows) so wind pollinates the ears well. Wait for warm soil.
Zone 6a averages a last spring frost around Apr 21 and a first fall frost around Oct 17. These are zone averages — look up your ZIP for your exact area.
See the full Zone 6a calendar in the tool →