When to plant Winter Squash in Zone 5a
In Zone 5a, Winter Squash: direct sow outdoors around May 5–May 26. Expect to harvest around Aug 8–Aug 29.
| Step | When |
|---|---|
| Direct sow outdoors | May 5 – May 26 |
| Harvest | Aug 8 – Aug 29 |
Tip: Harvest when the rind is hard and can't be dented by a thumbnail, then cure for storage.
Zone 5a averages a last spring frost around May 5 and a first fall frost around Oct 1. These are zone averages — look up your ZIP for your exact area.
See the full Zone 5a calendar in the tool →