When to plant Tomato in Zone 10b
In Zone 10b, Tomato: start seeds indoors around Nov 27–Dec 11; transplant outdoors around Jan 22–Jan 29. Expect to harvest around Apr 7–Apr 14.
| Step | When |
|---|---|
| Start seeds indoors | Nov 27 – Dec 11 |
| Transplant outdoors | Jan 22 – Jan 29 |
| Harvest | Apr 7 – Apr 14 |
Tip: Start indoors 6 weeks before last frost. Don't transplant until nights stay above 50°F (10°C).
Zone 10b averages a last spring frost around Jan 15 and a first fall frost around Dec 31. These are zone averages — look up your ZIP for your exact area.
See the full Zone 10b calendar in the tool →