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Futo Spindle Bitter Gourd is a vigorous Japanese heirloom that brings the authentic heat-loving spirit of tropical Asian gardens right to your own trellis. This annual vine produces dark green, heavily textured fruits measuring 7-8 inches long, ready to harvest in just 60 to 69 days. Originally from Japan and still widely cultivated across tropical Asia, it's a climbing powerhouse that reaches up to 12 feet and produces not just the characterful bitter fruits but also yellow flowers and leafy shoots you can harvest along the way. If you crave authentic Asian ingredients and don't mind a little bitterness with your vegetables, this is your plant.
Full Sun
Moderate
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12in H x ?in W
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High
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The real draw here is how this Japanese variety pulls double duty: you get the distinctive heavily textured, dark green fruits that are iconic in Asian cooking, plus harvestable yellow flowers and tender leafy shoots along the vine. It's genuinely vigorous and heat-loving, thriving in the warm season when other vegetables are struggling. The spindle shape makes it easier to work with than some bitter gourd varieties, and the 60 to 69 day timeline means you're harvesting before the season ends. Non-GMO and heirloom, it's a variety with real heritage that still performs beautifully for modern gardeners.
The primary use is culinary, where the dark green, textured fruits are prepared in stir-fries, curries, and traditional Asian dishes that celebrate bitter gourd's distinctive sharp flavor. The young leafy shoots can also be harvested and cooked as greens. The yellow flowers, while less commonly used, are edible and occasionally harvested. For gardeners growing this variety, the fruit is the main event, but the ability to harvest leaves and flowers along the way makes it a productive plant that keeps giving throughout the season.
No timeline data available yet for this variety.
Start seeds indoors in containers kept at 70 to 85 degrees Fahrenheit. Transplant outdoors only after all danger of frost has passed and soil has warmed, as this variety is tender and cannot tolerate cold.
Harden off seedlings gradually by exposing them to outdoor conditions over a week or so. Transplant into warm soil once all frost danger is past and soil temperature has risen. Space plants 18 inches apart in rows, and provide sturdy trellising or support immediately at planting time.
You can direct sow seeds outdoors in warm soil after all frost danger has passed and soil temperature is consistently in the 70 to 85 degree range.
Harvest the fruits when they reach 7 to 8 inches long and are dark green with their characteristic heavy texture still visible. You can also harvest the tender leafy shoots throughout the season, and the yellow flowers are edible when you want them. Begin harvesting fruits around 60 to 69 days after planting, and continue picking regularly to encourage more production.
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“This variety comes straight from Japan, where it has been grown for generations as a staple warm-season vine. Originally adapted to tropical and subtropical Asian climates, Futo Spindle was preserved and developed in Japanese agriculture before making its way into seed catalogs for home gardeners. It remains widely cultivated in Japan and throughout tropical Asia, a testament to its reliability and the cultural value placed on this particular spindle-type bitter gourd across the region.”