When to plant Lettuce in Zone 1a
In Zone 1a, Lettuce: direct sow outdoors around May 18–Jun 15; direct sow outdoors around Jun 20–Jul 4. Expect to harvest around Jul 2–Jul 30.
| Step | When |
|---|---|
| Direct sow outdoors | May 18 – Jun 15 |
| Direct sow outdoors | Jun 20 – Jul 4 |
| Harvest | Jul 2 – Jul 30 |
| Harvest | Aug 4 – Aug 18 |
Tip: A cool-season crop. Sow early and again in late summer for fall; it bolts in summer heat.
Zone 1a averages a last spring frost around Jun 15 and a first fall frost around Aug 15. These are zone averages — look up your ZIP for your exact area.
See the full Zone 1a calendar in the tool →