When to plant Tomato in Zone 12b
In Zone 12b, Tomato: start seeds indoors around Nov 13–Nov 27; transplant outdoors around Jan 8–Jan 15. Expect to harvest around Mar 24–Mar 31.
| Step | When |
|---|---|
| Start seeds indoors | Nov 13 – Nov 27 |
| Transplant outdoors | Jan 8 – Jan 15 |
| Harvest | Mar 24 – Mar 31 |
Tip: Start indoors 6 weeks before last frost. Don't transplant until nights stay above 50°F (10°C).
Zone 12b 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 12b calendar in the tool →