FrostCal

When to Plant Green Beans in New Hampshire

In a typical New Hampshire location, sow outdoors May 3 – May 17. Across the state, the outdoor planting window starts as early as Apr 21 in Salem and as late as May 14 in Berlin.

Method Direct sow
Days to maturity 50–65 days

Direct sow at last frost to 2 weeks after, once soil has warmed; frost-tender, do not rush.

Green Beans Planting Dates by City

CityDirect sow
ManchesterApr 30 – May 14
NashuaApr 30 – May 14
ConcordMay 8 – May 22
East ConcordMay 8 – May 22
Derry VillageApr 30 – May 14
DoverMay 3 – May 17
RochesterApr 30 – May 14
SalemApr 21 – May 5
MerrimackApr 30 – May 14
KeeneMay 14 – May 28
DerryApr 30 – May 14
PortsmouthMay 4 – May 18
BedfordApr 21 – May 5
LaconiaApr 30 – May 14
LebanonMay 9 – May 23
WindhamMay 3 – May 17
ClaremontMay 14 – May 28
PelhamMay 3 – May 17
SomersworthApr 30 – May 14
LondonderryApr 21 – May 5
DurhamMay 8 – May 22
HamptonMay 4 – May 18
BerlinMay 14 – May 28
ExeterMay 4 – 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 green beans in New Hampshire?

In a typical New Hampshire location, sow outdoors May 3 – May 17. Across the state, the outdoor planting window starts as early as Apr 21 in Salem and as late as May 14 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 green beans take to grow?

Green Beans typically take 50–65 days from planting to harvest. Direct sow at last frost to 2 weeks after, once soil has warmed; frost-tender, do not rush.

Other Crops in New Hampshire

When to plant green beans in other states

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