FrostCal

When to Plant Asparagus in New Hampshire

In a typical New Hampshire location, plant 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.

Method Plant out (slips, crowns, or tubers)
Days to maturity 730–1095 days

Perennial; plant crowns 2-4 weeks before last frost as soon as soil can be worked. Takes 2-3 years to full production.

Asparagus Planting Dates by City

CityPlant outdoors
ManchesterApr 2 – Apr 16
NashuaApr 2 – Apr 16
ConcordApr 10 – Apr 24
East ConcordApr 10 – Apr 24
Derry VillageApr 2 – Apr 16
DoverApr 5 – Apr 19
RochesterApr 2 – Apr 16
SalemMar 24 – Apr 7
MerrimackApr 2 – Apr 16
KeeneApr 16 – Apr 30
DerryApr 2 – Apr 16
PortsmouthApr 6 – Apr 20
BedfordMar 24 – Apr 7
LaconiaApr 2 – Apr 16
LebanonApr 11 – Apr 25
WindhamApr 5 – Apr 19
ClaremontApr 16 – Apr 30
PelhamApr 5 – Apr 19
SomersworthApr 2 – Apr 16
LondonderryMar 24 – Apr 7
DurhamApr 10 – Apr 24
HamptonApr 6 – Apr 20
BerlinApr 16 – Apr 30
ExeterApr 6 – Apr 20

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 asparagus in New Hampshire?

In a typical New Hampshire location, plant 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.

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 asparagus take to grow?

Asparagus typically take 730–1095 days from planting to harvest. Perennial; plant crowns 2-4 weeks before last frost as soon as soil can be worked. Takes 2-3 years to full production.

Other Crops in New Hampshire

When to plant asparagus in other states

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