How to grow bitter melon in a raised bed

Bitter melon (bitter gourd) is a warty, distinctive gourd prized across Asian cooking for its unique bitterness. A vigorous, ornamental climber, it revels in a hot, humid summer up a strong trellis.

Quick facts

• Position: full sun, loves heat & humidity
• Spacing: 40–50 cm apart
• Tub depth: our 35 cm depth
• Time to harvest: 12–16 weeks
• Support: a strong trellis

When should I plant bitter melon?

Bitter melon is frost-tender and heat-loving — plant from late spring through summer. It needs a long, warm season. Our free garden calendar shows the right months for your postcode.

• Subtropical (Brisbane & SEQ): October to January
• Temperate (Sydney, Melbourne, Adelaide, Perth): November to December
• Cool & mountain (Tasmania, Canberra, highlands): Not really suited to this zone
• Tropical (Cairns, Darwin): September to February
• Arid inland: October to November

How do I grow bitter melon in a raised bed?

Plant into rich, warm mix at the base of a trellis and let it climb. Hand-pollinate a few female flowers in the morning if fruit set is poor.

How often should I water and feed bitter melon?

Keep the mix moist through the warm season; it's a thirsty, vigorous grower.

What pests attack bitter melon?

Keep an eye out for aphids and fruit fly. Most are easily managed — see our safe pest guide.

What diseases affect bitter melon?

The main ones are powdery mildew and mosaic virus. Good airflow, morning watering and steady moisture prevent most.

What grows well with bitter melon?

Give it a trellis of its own; grows well beside other cucurbits. See our companion planting guide.

When do I harvest bitter melon?

Pick the fruit young and pale green for milder flavour, or riper for more bitterness — but before it turns orange and splits. Regular picking keeps it producing.

More growing guides: cucumbers, pumpkins and cucamelon.

Plan your patch: our free garden calendar shows what to plant now where you live. Ready to grow? Browse our raised garden beds or build your own with the garden bed builder.

Image: Forest and Kim Starr, CC BY 3.0 us, via Wikimedia Commons.