DibbleWhen to plant swiss chard in Zone 5
In Zone 5, the last spring frost usually passes around April 30 and the first fall frost arrives around October 1, leaving about 154 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Classic temperate season. Most vegetables and flowers do well with normal timing.
Planting windows for swiss chard in Zone 5
| Task | Window |
|---|---|
| Direct sow | Apr 16 to Apr 30 |
| Estimated harvest | Jun 10 to Oct 8 |
The harvest estimate counts 55 days to maturity, then a picking window of about 120 days. These windows use typical frost dates for Zone 5; Dibble pins them to your exact ZIP code.
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How to grow swiss chard
Sow chard a couple of weeks before last frost. Pick outer leaves and it keeps producing from spring through fall.
Companion plants
Good neighbors for Swiss Chard:
Swiss Chard in nearby zones
Keep exploring
Swiss Chard: the full growing guide · The Zone 5 planting calendar · Every crop and zone
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Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.