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Can You Grow Cauliflower in Hawaii?
US · USDA Zone 12b · zones 9b, 10a, 10b, 11a, 11b, 12a, 12b
Cauliflower needs consistently cool weather (60-70°F) — sustained heat makes heads bolt and turn bitter.
Plant zones
Hawaii last frost
Hawaii first frost
Days to harvest
When to plant Cauliflowers in Hawaii
Start indoors
Transplant
Harvest
Dates are approximate, based on Hawaii's average frost dates. Your exact yard may vary by microclimate.
About Cauliflower
Cauliflower is one of the most rewarding cool-season brassicas — and one of the trickiest. It forms a dense white head that needs steady cool weather and consistent moisture.
Start indoors 6 weeks before last frost; transplant 2-3 weeks before last frost. Blanch heads by tying leaves over them once they're 2-3 inches across. Harvest before curds loosen.
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 Cauliflower in Hawaii?
Cauliflower needs consistently cool weather (60-70°F) — sustained heat makes heads bolt and turn bitter.
What zone is Hawaii?
Hawaii spans USDA Zone 12b (9b, 10a, 10b, 11a, 11b, 12a, 12b).
When do you plant Cauliflowers in Hawaii?
Plant Cauliflowers around no frost (start indoors Jan 1), harvest Mar 2 – Apr 11.