When to plant Swiss Chard in Zone 1a
In Zone 1a, Swiss Chard: direct sow outdoors around Jun 1–Jun 29. Expect to harvest around Jul 26–Aug 23.
| Step | When |
|---|---|
| Direct sow outdoors | Jun 1 – Jun 29 |
| Harvest | Jul 26 – Aug 23 |
Tip: Heat- and cold-tolerant; pick outer leaves and it keeps producing all season.
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 →