When to plant Spinach in Zone 1a
In Zone 1a, Spinach: direct sow outdoors around May 4–Jun 1; direct sow outdoors around Jun 20–Jul 11. Expect to harvest around Jun 13–Jul 11.
| Step | When |
|---|---|
| Direct sow outdoors | May 4 – Jun 1 |
| Direct sow outdoors | Jun 20 – Jul 11 |
| Harvest | Jun 13 – Jul 11 |
| Harvest | Jul 30 – Aug 20 |
Tip: Very cold-hardy; sow as soon as soil can be worked, and again in fall. Bolts in heat.
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 →