When to plant Cucumber in Zone 3a
In Zone 3a, Cucumber: start seeds indoors around May 4–May 11; transplant outdoors around Jun 1–Jun 8; direct sow outdoors around Jun 1–Jun 15. Expect to harvest around Jul 31–Aug 7.
| Step | When |
|---|---|
| Start seeds indoors | May 4 – May 11 |
| Transplant outdoors | Jun 1 – Jun 8 |
| Direct sow outdoors | Jun 1 – Jun 15 |
| Harvest | Jul 31 – Aug 7 |
| Harvest | Jul 31 – Aug 14 |
Tip: Dislikes root disturbance — direct-sow if you can, or use peat pots for transplants.
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 →