When to plant Pumpkin in Zone 1b
In Zone 1b, Pumpkin: direct sow outdoors around Jun 10–Jul 1. Expect to harvest around Sep 18–Oct 9.
| Step | When |
|---|---|
| Direct sow outdoors | Jun 10 – Jul 1 |
| Harvest | Sep 18 – Oct 9 |
Tip: Needs lots of room and a long warm season. Count back from your fall frost for jack-o'-lanterns.
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 →