When to plant Spinach in Zone 10b
In Zone 10b, Spinach: direct sow outdoors around Dec 4–Jan 1; direct sow outdoors around Nov 5–Nov 26. Expect to harvest around Jan 13–Feb 10.
| Step | When |
|---|---|
| Direct sow outdoors | Dec 4 – Jan 1 |
| Direct sow outdoors | Nov 5 – Nov 26 |
| Harvest | Jan 13 – Feb 10 |
| Harvest | Dec 15 – Jan 5 |
Tip: Very cold-hardy; sow as soon as soil can be worked, and again in fall. Bolts in heat.
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 →