When to plant Zucchini in Zone 1b
In Zone 1b, Zucchini: direct sow outdoors around Jun 10–Jul 1. Expect to harvest around Jul 30–Aug 20.
| Step | When |
|---|---|
| Direct sow outdoors | Jun 10 – Jul 1 |
| Harvest | Jul 30 – Aug 20 |
Tip: Fast and prolific. A couple of plants feed a household — don't over-plant.
Zone 1b averages a last spring frost around Jun 10 and a first fall frost around Aug 20. These are zone averages — look up your ZIP for your exact area.
See the full Zone 1b calendar in the tool →