When to plant Thyme in Zone 1b
In Zone 1b, Thyme: start seeds indoors around Apr 15–Apr 29; transplant outdoors around Jun 10–Jun 24. Expect to harvest around Aug 29–Sep 12.
| Step | When |
|---|---|
| Start seeds indoors | Apr 15 – Apr 29 |
| Transplant outdoors | Jun 10 – Jun 24 |
| Harvest | Aug 29 – Sep 12 |
Tip: Perennial in most zones. Loves lean, well-drained soil — don't overwater or overfeed.
Zone 1b averages a last spring frost around Jun 10 and a first fall frost around Aug 20. These are zone averages — look up your ZIP for your exact area.
See the full Zone 1b calendar in the tool →