When to plant Swiss chard in zone 4
In USDA zone 4, the last spring frost usually falls between May 1 and May 20. Sow or plant Swiss chard around Apr 15 to Jun 9. Expect to harvest around Jun 21 to Oct 31.
Zone 4 dates for Swiss chard
| Sow or plant outside | Apr 15 to Jun 9 |
|---|---|
| Harvest | Jun 21 to Oct 31 |
| Typical last spring frost | May 1 to May 20 |
| Typical first fall frost | around Sep 15 |
USDA zones measure winter cold, not frost dates, so these are typical dates for the zone. Towns in the same zone can be weeks apart.
Get dates for Swiss chard in your exact town, not just your zone.
Get my dates free →How to grow Swiss chard
Colorful, cut-and-come-again all season. Read the full Swiss chard growing guide: spacing, sun and soil, step-by-step care, problems and the best varieties.