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Can You Grow Kohlrabi in New Hampshire?

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

Grows well here

Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.

Plant zones

3a–9b

New Hampshire last frost

early April

New Hampshire first frost

late October

Days to harvest

45–60 days

When to plant Kohlrabis in New Hampshire

Start indoors

Mar 10

Transplant

Apr 7

Harvest

May 22 – Jun 6

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

About Kohlrabi

Kohlrabi looks alien but tastes like a mild, crisp broccoli stem. One of the fastest cool-season crops — ready in 6-8 weeks and handles light frosts like a champion.

Start indoors 4-6 weeks before last frost or direct sow. Thin to 6-8 inches. Harvest when bulbs are 2-3 inches diameter — bigger gets woody. Great for fall crops too.

Full kohlrabi 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 Kohlrabi in New Hampshire?

Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.

What zone is New Hampshire?

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

When do you plant Kohlrabis in New Hampshire?

Plant Kohlrabis around early April (start indoors Mar 10), harvest May 22 – Jun 6.