When to plant Tomato in Zone 6a
In Zone 6a, Tomato: start seeds indoors around Mar 3–Mar 17; transplant outdoors around Apr 28–May 5. Expect to harvest around Jul 12–Jul 19.
| Step | When |
|---|---|
| Start seeds indoors | Mar 3 – Mar 17 |
| Transplant outdoors | Apr 28 – May 5 |
| Harvest | Jul 12 – Jul 19 |
Tip: Start indoors 6 weeks before last frost. Don't transplant until nights stay above 50°F (10°C).
Zone 6a averages a last spring frost around Apr 21 and a first fall frost around Oct 17. These are zone averages — look up your ZIP for your exact area.
See the full Zone 6a calendar in the tool →