When to plant Cilantro in Zone 3b
In Zone 3b, Cilantro: direct sow outdoors around Apr 29–May 27; direct sow outdoors around Jul 18–Aug 8. Expect to harvest around Jun 13–Jul 11.
| Step | When |
|---|---|
| Direct sow outdoors | Apr 29 – May 27 |
| Direct sow outdoors | Jul 18 – Aug 8 |
| Harvest | Jun 13 – Jul 11 |
| Harvest | Sep 1 – Sep 22 |
Tip: Cool-season herb that bolts fast in heat — succession-sow every few weeks.
Zone 3b averages a last spring frost around May 20 and a first fall frost around Sep 12. These are zone averages — look up your ZIP for your exact area.
See the full Zone 3b calendar in the tool →