When to plant swiss chard in New Hampshire

Swiss chard
Sow outdoors in Manchester
Apr 16–May 14

Across New Hampshire the window opens between April 15 and April 30. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Manchester
Apr 16–May 14
Last frost, Manchester
Apr 30

Sow outdoors from 2 weeks before to 2 weeks after the last frost. Cut outer leaves and the plant keeps going until hard frost.

Swiss chard planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
ManchesterApr 16–May 14
NashuaApr 15–May 13
ConcordApr 24–May 22
DoverApr 19–May 17
RochesterApr 16–May 14
KeeneApr 30–May 28
PortsmouthApr 20–May 18
DerryApr 16–May 14

Questions

When should I plant swiss chard in New Hampshire?

In Manchester, sow outdoors from April 16 to May 14. Across New Hampshire the window opens between April 15 and April 30, depending on the local last frost.

How is this date worked out?

Sow outdoors from 2 weeks before to 2 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for New Hampshire

Swiss chard in other states

Frost dates for every city in New Hampshire