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Can You Grow Brussels Sprouts in New Hampshire?

US · USDA Zone 5b · zones 4a, 4b, 5a, 5b, 6a

Grows well here

Brussels sprouts grow here with a long enough frost-free season — frost actually improves them.

Plant zones

3a–9a

New Hampshire last frost

early April

New Hampshire first frost

late October

Days to harvest

90–180 days

When to plant Brussels Sproutses in New Hampshire

Start indoors

Feb 9

Transplant

Apr 7

Harvest

Jul 6 – Oct 4

Dates are approximate, based on New Hampshire's average frost dates. Your exact yard may vary by microclimate.

About Brussels Sprouts

Brussels sprouts have a long season but reward patience — sprouts actually improve after a light frost.

Start indoors 8 weeks before last frost. Plant in the sunniest spot. Needs a long season — start early. Frost improves flavour. Stake in exposed positions against autumn winds.

Full brussels sprouts growing guide →

Gardening in New Hampshire

New Hampshire has a humid continental climate. Coastal areas are Zone 5b-6a; northern mountains are Zone 4a-5a. Short growing seasons but productive for cool-season crops and berries.

See what grows well in New Hampshire →

Frequently asked questions

Can you grow Brussels Sprouts in New Hampshire?

Brussels sprouts grow here with a long enough frost-free season — frost actually improves them.

What zone is New Hampshire?

New Hampshire spans USDA Zone 5b (4a, 4b, 5a, 5b, 6a).

When do you plant Brussels Sproutses in New Hampshire?

Plant Brussels Sproutses around early April (start indoors Feb 9), harvest Jul 6 – Oct 4.