When to plant garlic in New Hampshire

Fall planting in Manchester

Sep 20–Oct 25

Across New Hampshire the window opens between September 10 and September 20. Find your city below; the dates follow each town's own average first fall frost.

Fall planting, Manchester: Sep 20–Oct 25
Last frost, Manchester: Apr 30

Plant cloves from 3 weeks before to 2 weeks after the first fall frost. Plant cloves pointy end up, about 2 inches deep. Roots grow before the ground freezes and leaves come up in spring.

Garlic planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

ManchesterSep 20–Oct 25

NashuaSep 17–Oct 22

ConcordSep 12–Oct 17

DoverSep 19–Oct 24

RochesterSep 18–Oct 23

KeeneSep 10–Oct 15

PortsmouthSep 17–Oct 22

DerrySep 20–Oct 25

Questions

When should I plant garlic in New Hampshire?

In Manchester, fall planting from September 20 to October 25. Across New Hampshire the window opens between September 10 and September 20, depending on the local last frost.

How is this date worked out?

Plant cloves from 3 weeks before to 2 weeks after the first fall frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for New Hampshire

Garlic in other states

Frost dates for every city in New Hampshire