When to plant Cucumber in Zone 1a
In Zone 1a, Cucumber: start seeds indoors around May 25–Jun 1; transplant outdoors around Jun 22–Jun 29; direct sow outdoors around Jun 22–Jul 6. Expect to harvest around Aug 21–Aug 28.
| Step | When |
|---|---|
| Start seeds indoors | May 25 – Jun 1 |
| Transplant outdoors | Jun 22 – Jun 29 |
| Direct sow outdoors | Jun 22 – Jul 6 |
| Harvest | Aug 21 – Aug 28 |
| Harvest | Aug 21 – Sep 4 |
Tip: Dislikes root disturbance — direct-sow if you can, or use peat pots for transplants.
Zone 1a averages a last spring frost around Jun 15 and a first fall frost around Aug 15. These are zone averages — look up your ZIP for your exact area.
See the full Zone 1a calendar in the tool →