When to plant Spinach in Zone 5b
In Zone 5b, Spinach: direct sow outdoors around Mar 19–Apr 16; direct sow outdoors around Aug 10–Aug 31. Expect to harvest around Apr 28–May 26.
| Step | When |
|---|---|
| Direct sow outdoors | Mar 19 – Apr 16 |
| Direct sow outdoors | Aug 10 – Aug 31 |
| Harvest | Apr 28 – May 26 |
| Harvest | Sep 19 – Oct 10 |
Tip: Very cold-hardy; sow as soon as soil can be worked, and again in fall. Bolts in heat.
Zone 5b averages a last spring frost around Apr 30 and a first fall frost around Oct 5. These are zone averages — look up your ZIP for your exact area.
See the full Zone 5b calendar in the tool →