FrostCal

When to Plant Lettuce in New Hampshire

In a typical New Hampshire location, sow outdoors Apr 5 – Apr 19. Across the state, the outdoor planting window starts as early as Mar 24 in Salem and as late as Apr 16 in Berlin. For a fall crop, plant around Aug 14 – Aug 28.

Method Direct sow
Days to maturity 45–60 days

Cold-hardy; direct sow 2-4 weeks before last frost. Also transplantable from indoor starts.

Lettuce Planting Dates by City

CityDirect sowFall planting
ManchesterApr 2 – Apr 16Aug 16 – Aug 30
NashuaApr 2 – Apr 16Aug 17 – Aug 31
ConcordApr 10 – Apr 24Aug 8 – Aug 22
East ConcordApr 10 – Apr 24Aug 8 – Aug 22
Derry VillageApr 2 – Apr 16Aug 16 – Aug 30
DoverApr 5 – Apr 19Aug 15 – Aug 29
RochesterApr 2 – Apr 16Aug 14 – Aug 28
SalemMar 24 – Apr 7Aug 26 – Sep 9
MerrimackApr 2 – Apr 16Aug 17 – Aug 31
KeeneApr 16 – Apr 30Aug 6 – Aug 20
DerryApr 2 – Apr 16Aug 16 – Aug 30
PortsmouthApr 6 – Apr 20Aug 13 – Aug 27
BedfordMar 24 – Apr 7Aug 24 – Sep 7
LaconiaApr 2 – Apr 16Aug 23 – Sep 6
LebanonApr 11 – Apr 25Aug 11 – Aug 25
WindhamApr 5 – Apr 19Aug 13 – Aug 27
ClaremontApr 16 – Apr 30Aug 6 – Aug 20
PelhamApr 5 – Apr 19Aug 13 – Aug 27
SomersworthApr 2 – Apr 16Aug 14 – Aug 28
LondonderryMar 24 – Apr 7Aug 24 – Sep 7
DurhamApr 10 – Apr 24Aug 9 – Aug 23
HamptonApr 6 – Apr 20Aug 13 – Aug 27
BerlinApr 16 – Apr 30Aug 5 – Aug 19
ExeterApr 6 – Apr 20Aug 13 – Aug 27

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 lettuce in New Hampshire?

In a typical New Hampshire location, sow outdoors Apr 5 – Apr 19. Across the state, the outdoor planting window starts as early as Mar 24 in Salem and as late as Apr 16 in Berlin. For a fall crop, plant around Aug 14 – Aug 28.

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 lettuce take to grow?

Lettuce typically take 45–60 days from planting to harvest. Cold-hardy; direct sow 2-4 weeks before last frost. Also transplantable from indoor starts.

Other Crops in New Hampshire

When to plant lettuce in other states

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