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Can You Grow Bitter Melon (Karela) in Hawaii?
US · USDA Zone 12b · zones 9b, 10a, 10b, 11a, 11b, 12a, 12b
Bitter melon thrives in your warm zone — a productive vine that yields all summer.
Plant zones
Hawaii last frost
Hawaii first frost
Days to harvest
When to plant Bitter Melon (Karela)s in Hawaii
Start indoors
Transplant
Harvest
Dates are approximate, based on Hawaii's average frost dates. Your exact yard may vary by microclimate.
About Bitter Melon (Karela)
Bitter melon (karela) is a beloved vine vegetable in Indian, Chinese, and Southeast Asian cuisine. The distinctively bitter flavour is valued for digestive and blood-sugar benefits. In cold zones, grow in a greenhouse or as a long-season container crop.
Nick seeds and soak 24 hours before planting. Needs sustained heat — do not plant out until nights are reliably above 60°F. Train on a vertical trellis. Harvest at 4-6 inches while still firm and green — overripe fruits turn yellow-orange and split. Excellent for Indian bhindi-style dishes and stir-fries.
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 Bitter Melon (Karela) in Hawaii?
Bitter melon thrives in your warm zone — a productive vine that yields all summer.
What zone is Hawaii?
Hawaii spans USDA Zone 12b (9b, 10a, 10b, 11a, 11b, 12a, 12b).
When do you plant Bitter Melon (Karela)s in Hawaii?
Plant Bitter Melon (Karela)s around no frost (start indoors Jan 1), harvest Feb 25 – Mar 12.