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Can You Grow Bitter Melon (Karela) in Alberta?

Canada · Canadian Zone 4 · zones 2, 3, 4, 5

Won't grow here

Bitter melon needs sustained tropical heat that this zone cannot provide outdoors.

Plant zones

9a–12b

Alberta last frost

early May

Alberta first frost

early October

Days to harvest

55–70 days

When to plant Bitter Melon (Karela)s in Alberta

Start indoors

Apr 3

Transplant

May 1

Harvest

Jun 25 – Jul 10

Dates are approximate, based on Alberta'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 Alberta

Alberta has a dry continental climate with cold winters and warm summers. Calgary and Edmonton are Zone 4-5. Intense sunshine compensates for the short season. Chinook winds bring warm spells in winter.