When to Plant Garlic in New Hampshire

In a typical New Hampshire location, plant in fall Sep 11 – Sep 25. Across the state, the fall planting window starts as early as Sep 2 in Berlin and as late as Sep 23 in Salem.

Method Direct sow

Days to maturity 240–270 days

Fall-planted crop only; not planted in spring in most climates.

Garlic Planting Dates by City

City	Fall planting
Manchester	Sep 13 – Sep 27
Nashua	Sep 14 – Sep 28
Concord	Sep 5 – Sep 19
East Concord	Sep 5 – Sep 19
Derry Village	Sep 13 – Sep 27
Dover	Sep 12 – Sep 26
Rochester	Sep 11 – Sep 25
Salem	Sep 23 – Oct 7
Merrimack	Sep 14 – Sep 28
Keene	Sep 3 – Sep 17
Derry	Sep 13 – Sep 27
Portsmouth	Sep 10 – Sep 24
Bedford	Sep 21 – Oct 5
Laconia	Sep 20 – Oct 4
Lebanon	Sep 8 – Sep 22
Windham	Sep 10 – Sep 24
Claremont	Sep 3 – Sep 17
Pelham	Sep 10 – Sep 24
Somersworth	Sep 11 – Sep 25
Londonderry	Sep 21 – Oct 5
Durham	Sep 6 – Sep 20
Hampton	Sep 10 – Sep 24
Berlin	Sep 2 – Sep 16
Exeter	Sep 10 – Sep 24

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 garlic in New Hampshire?

In a typical New Hampshire location, plant in fall Sep 11 – Sep 25. Across the state, the fall planting window starts as early as Sep 2 in Berlin and as late as Sep 23 in Salem.

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 garlic take to grow?

Garlic typically take 240–270 days from planting to harvest. Fall-planted crop only; not planted in spring in most climates.

Other Crops in New Hampshire

When to plant garlic in other states