15 Heirloom Bitter Melon Seeds – Fast-Growing Green Gourd

Bitter melon (Momordica charantia) is a fast-growing tropical vine prized for its deeply ridged, green fruits and vigorous climbing habit. Also known as bitter gourd or karela, this heirloom variety produces elongated, warty gourds that are a staple in many Asian and Caribbean kitchens. The plant's lush foliage and small yellow flowers also make it an attractive addition to trellises, fences, and garden arches.

Whether you're growing for the kitchen or simply to enjoy its unique appearance, bitter melon is a rewarding crop for warm-season gardens. The vines are productive and can quickly cover a support structure, providing both edible harvests and ornamental value.

Plant Features

• Heirloom variety with characteristic deeply ridged, green fruit
• Vigorous climbing vine that performs well on trellises or fences
• Produces small yellow flowers before the gourds develop
• Fast-growing annual in most climates
• Dual-purpose: edible fruit and ornamental foliage

Growing Information

• Botanical Name: Momordica charantia
• Plant Type: Annual vine (tropical perennial in frost-free zones)
• Sunlight: Full sun
• Soil: Well-drained, fertile soil
• Water Requirements: Moderate; keep soil consistently moist but not waterlogged
• Growth Habit: Climbing vine
• USDA Hardiness Zones: 9-11 as perennial; grown as annual elsewhere
• Bloom Season: Summer to fall
• Mature Height: Vines can reach 6-10 feet with support
• Germination Requirements: Warm soil (70-85°F); soak seeds 24 hours before sowing to improve germination
• Spacing: 12-24 inches apart along a trellis

Planting & Care

Start seeds indoors 3-4 weeks before the last frost, or sow directly outdoors once soil has warmed. Soaking seeds for 24 hours before planting can help soften the hard seed coat and speed germination. Provide a sturdy trellis or fence for the vines to climb, as they can become heavy with fruit. Keep the soil evenly moist, especially during flowering and fruiting, and mulch to retain moisture.

Bitter melon thrives in heat and requires a long, warm growing season. Fertilize lightly at planting and again when flowering begins. Monitor for common pests like aphids and caterpillars. Harvest gourds when they are firm and green, typically 50-70 days after sowing, before they turn yellow and split.

What's Included

15 Heirloom Bitter Melon Seeds