When to plant Parsley in Zone 4b
In Zone 4b, Parsley: start seeds indoors around Mar 15–Mar 29; transplant outdoors around Apr 26–May 10; direct sow outdoors around Apr 26–May 24. Expect to harvest around Jul 10–Jul 24.
| Step | When |
|---|---|
| Start seeds indoors | Mar 15 – Mar 29 |
| Transplant outdoors | Apr 26 – May 10 |
| Direct sow outdoors | Apr 26 – May 24 |
| Harvest | Jul 10 – Jul 24 |
| Harvest | Jul 10 – Aug 7 |
Tip: Slow to germinate — soak seed overnight and be patient. Cold-hardy well into fall.
Zone 4b averages a last spring frost around May 10 and a first fall frost around Sep 22. These are zone averages — look up your ZIP for your exact area.
See the full Zone 4b calendar in the tool →