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Can You Grow Bitter Melon (Karela) in Arizona?

US · USDA Zone 9a · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a

Grows well here

Bitter melon thrives in your warm zone — a productive vine that yields all summer.

Plant zones

9a–12b

Arizona last frost

late January

Arizona first frost

late December

Days to harvest

55–70 days

When to plant Bitter Melon (Karela)s in Arizona

Start indoors

Jan 1

Transplant

Jan 20

Harvest

Mar 16 – Mar 31

Dates are approximate, based on Arizona'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.

Full bitter melon (karela) growing guide →

Gardening in Arizona

Arizona spans dramatic climate zones from cool mountain forests to hot desert. Low-elevation cities like Phoenix grow year-round; high-elevation areas are Zone 5-6.