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Can You Grow Kohlrabi in Hawaii?
US · USDA Zone 12b · zones 9b, 10a, 10b, 11a, 11b, 12a, 12b
Kohlrabi struggles in zones with very short cool seasons or intense summer heat.
Plant zones
Hawaii last frost
Hawaii first frost
Days to harvest
When to plant Kohlrabis in Hawaii
Start indoors
Transplant
Harvest
Dates are approximate, based on Hawaii'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.
Gardening in Hawaii
Hawaii is tropical with year-round warmth. Zone varies dramatically by elevation — coastal areas are Zone 11-12 while Mauna Kea slopes reach Zone 9. Year-round growing throughout.
Frequently asked questions
Can you grow Kohlrabi in Hawaii?
Kohlrabi struggles in zones with very short cool seasons or intense summer heat.
What zone is Hawaii?
Hawaii spans USDA Zone 12b (9b, 10a, 10b, 11a, 11b, 12a, 12b).
When do you plant Kohlrabis in Hawaii?
Plant Kohlrabis around no frost (start indoors Jan 1), harvest Feb 15 – Mar 2.