FrostCal

When to Plant Cucumbers in New Hampshire

In a typical New Hampshire location, start seeds indoors Apr 5 – Apr 12, then sow outdoors May 10 – May 17, then transplant outdoors May 10 – May 17. Across the state, the outdoor planting window starts as early as Apr 28 in Salem and as late as May 21 in Berlin.

Method Start indoors, then transplant
Days to maturity 50–65 days

Can be started indoors 3-4 weeks before transplanting, or direct-sown 1-2 weeks after last frost once soil is warm.

Cucumbers Planting Dates by City

CityStart indoorsDirect sowTransplant
ManchesterApr 2 – Apr 9May 7 – May 14May 7 – May 14
NashuaApr 2 – Apr 9May 7 – May 14May 7 – May 14
ConcordApr 10 – Apr 17May 15 – May 22May 15 – May 22
East ConcordApr 10 – Apr 17May 15 – May 22May 15 – May 22
Derry VillageApr 2 – Apr 9May 7 – May 14May 7 – May 14
DoverApr 5 – Apr 12May 10 – May 17May 10 – May 17
RochesterApr 2 – Apr 9May 7 – May 14May 7 – May 14
SalemMar 24 – Mar 31Apr 28 – May 5Apr 28 – May 5
MerrimackApr 2 – Apr 9May 7 – May 14May 7 – May 14
KeeneApr 16 – Apr 23May 21 – May 28May 21 – May 28
DerryApr 2 – Apr 9May 7 – May 14May 7 – May 14
PortsmouthApr 6 – Apr 13May 11 – May 18May 11 – May 18
BedfordMar 24 – Mar 31Apr 28 – May 5Apr 28 – May 5
LaconiaApr 2 – Apr 9May 7 – May 14May 7 – May 14
LebanonApr 11 – Apr 18May 16 – May 23May 16 – May 23
WindhamApr 5 – Apr 12May 10 – May 17May 10 – May 17
ClaremontApr 16 – Apr 23May 21 – May 28May 21 – May 28
PelhamApr 5 – Apr 12May 10 – May 17May 10 – May 17
SomersworthApr 2 – Apr 9May 7 – May 14May 7 – May 14
LondonderryMar 24 – Mar 31Apr 28 – May 5Apr 28 – May 5
DurhamApr 10 – Apr 17May 15 – May 22May 15 – May 22
HamptonApr 6 – Apr 13May 11 – May 18May 11 – May 18
BerlinApr 16 – Apr 23May 21 – May 28May 21 – May 28
ExeterApr 6 – Apr 13May 11 – May 18May 11 – May 18

Showing the 24 most populous of 24 New Hampshire cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all New Hampshire cities.

Frequently Asked Questions

When should I plant cucumbers in New Hampshire?

In a typical New Hampshire location, start seeds indoors Apr 5 – Apr 12, then sow outdoors May 10 – May 17, then transplant outdoors May 10 – May 17. Across the state, the outdoor planting window starts as early as Apr 28 in Salem and as late as May 21 in Berlin.

When is the last frost in New Hampshire?

The average last spring frost in New Hampshire ranges from April 21 in Salem to May 14 in Berlin, based on NOAA 1991–2020 climate normals.

How long do cucumbers take to grow?

Cucumbers typically take 50–65 days from planting to harvest. Can be started indoors 3-4 weeks before transplanting, or direct-sown 1-2 weeks after last frost once soil is warm.

Other Crops in New Hampshire

When to plant cucumbers in other states

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