When to plant Cucumber in Zone 12a
In Zone 12a, Cucumber: start seeds indoors around Dec 11–Dec 18; transplant outdoors around Jan 8–Jan 15; direct sow outdoors around Jan 8–Jan 22. Expect to harvest around Mar 9–Mar 16.
| Step | When |
|---|---|
| Start seeds indoors | Dec 11 – Dec 18 |
| Transplant outdoors | Jan 8 – Jan 15 |
| Direct sow outdoors | Jan 8 – Jan 22 |
| Harvest | Mar 9 – Mar 16 |
| Harvest | Mar 9 – Mar 23 |
Tip: Dislikes root disturbance — direct-sow if you can, or use peat pots for transplants.
Zone 12a averages a last spring frost around Jan 1 and a first fall frost around Dec 31. These are zone averages — look up your ZIP for your exact area.
See the full Zone 12a calendar in the tool →