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Can You Grow Celeriac in Idaho?

US · USDA Zone 6b · zones 3b, 4a, 4b, 5a, 5b, 6a, 6b

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

Idaho last frost

mid-March

Idaho first frost

mid-November

Days to harvest

110–120 days

When to plant Celeriacs in Idaho

Start indoors

Jan 3

Transplant

Mar 15

Harvest

Jul 3 – Jul 13

Dates are approximate, based on Idaho'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 Idaho

Idaho has a semi-arid continental climate. Southern valleys are Zone 6-7 with hot dry summers; northern regions and mountains are colder. Excellent for root vegetables and cool crops.