When to plant celery in New Hampshire

Celery
Plant out in Manchester
May 7–May 14

Across New Hampshire the window opens between May 6 and May 21. Find your city below; the dates follow each town's own average last frost.

Start indoors, Manchester
Feb 5–Feb 19
Plant out, Manchester
May 7–May 14
Last frost, Manchester
Apr 30

Start seeds indoors 10–12 weeks before the last frost; plant out 1–2 weeks after the last frost. Celery needs steady moisture all season.

Celery planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
ManchesterMay 7–May 14
NashuaMay 6–May 13
ConcordMay 15–May 22
DoverMay 10–May 17
RochesterMay 7–May 14
KeeneMay 21–May 28
PortsmouthMay 11–May 18
DerryMay 7–May 14

Questions

When should I plant celery in New Hampshire?

In Manchester, plant out from May 7 to May 14. Across New Hampshire the window opens between May 6 and May 21, depending on the local last frost.

How is this date worked out?

Start seeds indoors 10–12 weeks before the last frost; plant out 1–2 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for New Hampshire

Celery in other states

Frost dates for every city in New Hampshire