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Can You Grow Bitter Melon (Karela) in Washington?

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

Grow indoors

Start indoors and transplant once nights are reliably above 60°F — give it the hottest spot in your garden.

Plant zones

9a–12b

Washington last frost

late January

Washington first frost

mid-December

Days to harvest

55–70 days

When to plant Bitter Melon (Karela)s in Washington

Start indoors

Jan 2

Transplant

Jan 30

Harvest

Mar 26 – Apr 10

Dates are approximate, based on Washington'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 Washington

Washington has dramatically different climates. The wet maritime west (Zone 8a-8b) is mild and productive year-round. Eastern Washington is semi-arid and colder (Zone 5-6) with hot dry summers.

See what grows well in Washington →

Frequently asked questions

Can you grow Bitter Melon (Karela) in Washington?

Start indoors and transplant once nights are reliably above 60°F — give it the hottest spot in your garden.

What zone is Washington?

Washington spans USDA Zone 8b (4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b).

When do you plant Bitter Melon (Karela)s in Washington?

Plant Bitter Melon (Karela)s around late January (start indoors Jan 2), harvest Mar 26 – Apr 10.