When to plant Mint in Zone 1b
In Zone 1b, Mint: transplant outdoors around Jun 10–Jun 24. Expect to harvest around Aug 24–Sep 7.
| Step | When |
|---|---|
| Transplant outdoors | Jun 10 – Jun 24 |
| Harvest | Aug 24 – Sep 7 |
Tip: Vigorous to the point of invasive — grow it in a pot or buried container to contain the roots.
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 →