When to plant Mint in Zone 9b
In Zone 9b, Mint: transplant outdoors around Feb 15–Mar 1. Expect to harvest around May 1–May 15.
| Step | When |
|---|---|
| Transplant outdoors | Feb 15 – Mar 1 |
| Harvest | May 1 – May 15 |
Tip: Vigorous to the point of invasive — grow it in a pot or buried container to contain the roots.
Zone 9b averages a last spring frost around Feb 15 and a first fall frost around Dec 15. These are zone averages — look up your ZIP for your exact area.
See the full Zone 9b calendar in the tool →