In USDA zone 7, the last spring frost usually falls between Apr 1 and Apr 20. Sow or plant Swiss chard around Mar 16 to May 10. Expect to harvest around May 22 to Oct 21.
| Sow or plant outside | Mar 16 to May 10 |
|---|---|
| Harvest | May 22 to Oct 21 |
| Typical last spring frost | Apr 1 to Apr 20 |
| Typical first fall frost | around Oct 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.
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