When to plant Zucchini in Zone 3a
In Zone 3a, Zucchini: direct sow outdoors around May 25–Jun 15. Expect to harvest around Jul 14–Aug 4.
| Step | When |
|---|---|
| Direct sow outdoors | May 25 – Jun 15 |
| Harvest | Jul 14 – Aug 4 |
Tip: Fast and prolific. A couple of plants feed a household — don't over-plant.
Zone 3a averages a last spring frost around May 25 and a first fall frost around Sep 8. These are zone averages — look up your ZIP for your exact area.
See the full Zone 3a calendar in the tool →