When to plant Oregano in Zone 10a
In Zone 10a, Oregano: start seeds indoors around Dec 6–Dec 20; transplant outdoors around Jan 31–Feb 14. Expect to harvest around Apr 21–May 5.
| Step | When |
|---|---|
| Start seeds indoors | Dec 6 – Dec 20 |
| Transplant outdoors | Jan 31 – Feb 14 |
| Harvest | Apr 21 – May 5 |
Tip: Hardy perennial; flavour is strongest in full sun and poor soil. Trim before it flowers.
Zone 10a averages a last spring frost around Jan 31 and a first fall frost around Dec 28. These are zone averages — look up your ZIP for your exact area.
See the full Zone 10a calendar in the tool →