When to plant Swiss Chard in Zone 6b
In Zone 6b, Swiss Chard: direct sow outdoors around Apr 1–Apr 29. Expect to harvest around May 26–Jun 23.
| Step | When |
|---|---|
| Direct sow outdoors | Apr 1 – Apr 29 |
| Harvest | May 26 – Jun 23 |
Tip: Heat- and cold-tolerant; pick outer leaves and it keeps producing all season.
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 →