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Can You Grow Celeriac in New Hampshire?

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

Grows well here

Celeriac can work in your zone with an early indoor start — it needs all the growing season you have.

Plant zones

3a–9b

New Hampshire last frost

early April

New Hampshire first frost

late October

Days to harvest

110–120 days

When to plant Celeriacs in New Hampshire

Start indoors

Jan 26

Transplant

Apr 7

Harvest

Jul 26 – Aug 5

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

About Celeriac

Celeriac (celery root) is a rewarding but demanding crop with a long growing season. The knobbly root has a mild celery-like flavor and stores well all winter.

Start indoors 10-12 weeks before last frost — one of the earliest indoor starts of the season. Transplant after all frost risk. Keep consistently moist. Trim side roots as bulb develops. Harvest before hard freeze.

Full celeriac 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.