When to plant Spinach in Zone 3a
In Zone 3a, Spinach: direct sow outdoors around Apr 13–May 11; direct sow outdoors around Jul 14–Aug 4. Expect to harvest around May 23–Jun 20.
| Step | When |
|---|---|
| Direct sow outdoors | Apr 13 – May 11 |
| Direct sow outdoors | Jul 14 – Aug 4 |
| Harvest | May 23 – Jun 20 |
| Harvest | Aug 23 – Sep 13 |
Tip: Very cold-hardy; sow as soon as soil can be worked, and again in fall. Bolts in heat.
Zone 3a averages a last spring frost around May 25 and a first fall frost around Sep 8. These are zone averages — look up your ZIP for your exact area.
See the full Zone 3a calendar in the tool →