When to plant Basil in Zone 6b
In Zone 6b, Basil: start seeds indoors around Mar 4–Mar 18; transplant outdoors around Apr 22–May 6. Expect to harvest around Jun 21–Jul 5.
| Step | When |
|---|---|
| Start seeds indoors | Mar 4 – Mar 18 |
| Transplant outdoors | Apr 22 – May 6 |
| Harvest | Jun 21 – Jul 5 |
Tip: Extremely frost-sensitive. Keep indoors until nights are reliably warm, then pinch often.
Zone 6b averages a last spring frost around Apr 15 and a first fall frost around Oct 25. These are zone averages — look up your ZIP for your exact area.
See the full Zone 6b calendar in the tool →