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Can You Grow Kohlrabi in Idaho?

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

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

Idaho last frost

mid-March

Idaho first frost

mid-November

Days to harvest

45–60 days

When to plant Kohlrabis in Idaho

Start indoors

Feb 14

Transplant

Mar 15

Harvest

Apr 29 – May 14

Dates are approximate, based on Idaho'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 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.