🫘 Orient Wonder Yardlong Bean

Vigna unguiculata subsp. sesquipedalis ‘Orient Wonder’
The classic long bean: dark-green, stringless pods up to 30 inches that stay tender because the seeds are in no hurry.
Sun
Full sun, 6+ hours
Days to harvest
80–85 days
Spacing
4–6 inches apart along a trellis; rows 30–36 inches apart (species standard)
Soil pH
6.0–7.0
Zones
Frost-sensitive annual; best in warm climates

What it looks like

Orient Wonder Yardlong Bean (species photo)
Vigna unguiculata 01. Photo: Amada44, Public domain. Species photo — no verified photo of this variety itself exists.
Orient Wonder Yardlong Bean (species photo)
Vigna unguiculata subsp. sesquipedalis JRVdH 01. Photo: Cephas, CC BY-SA 4.0. Species photo — no verified photo of this variety itself exists.
Orient Wonder Yardlong Bean (species photo)
Vigna unguiculata subsp. sesquipedalis JRVdH 02. Photo: Cephas, CC BY-SA 4.0. Species photo — no verified photo of this variety itself exists.

Why this variety

Orient Wonder is the yardlong bean most gardeners start with, and many never leave: smooth, dark-green, stringless pods that hang in pairs, stay tender longer than most types because the seeds develop slowly, and can reach 30 inches if you forget to pick them — which you will, once, and then never again. It is vigorous, heat-tolerant, and famously productive, the bean that makes a trellis look like it is working overtime.

The slow seed development is the practical magic: most yardlongs go seedy and tough fast, but Orient Wonder pods stay smooth and slender at eating size for days longer, forgiving a missed picking day. In Florida heat it produces all summer if picked often, and it tolerates weather swings — cool, dry, hot, humid — better than traditional snap beans.

How to grow

Direct-sow after all danger of frost, when soil is at least 65–70°F; cold soil rots the seed. Sow about an inch deep at the base of a sturdy trellis at least 6 feet tall — these vines are heavy and need real support. They are heat-loving and frost-sensitive, thriving at 77–95°F, and they fix their own nitrogen, so inoculating seed with cowpea-type inoculant helps on ground where cowpeas have never grown.

Water & feeding

Water deeply at the base, about an inch a week, and more during flowering and pod formation; dry soil at flowering gives low yields and fibrous pods. Do not over-fertilize with nitrogen — you will get leaves instead of beans. Compost at planting and a low-nitrogen side-dress when pods form is plenty.

Common problems

  • Cold, wet soil — wait for warm soil; seedlings collapse in cold ground.
  • Aphids and bean beetles — row cover early, hand-pick, and encourage ladybugs.
  • Rust and mildew in humid weather — space for airflow, water at the base, and remove badly affected leaves.
  • Tough pods — you waited too long; pick young and pick often.

Harvest

Pick at 12–18 inches long, still slender, firm, and flexible, before seeds bulge — every 1–2 days at peak. Snip pods into short lengths and stir-fry, dry-fry, or add to curries; frequent picking keeps vines producing for 6–8 weeks.

Nerdy fact: Yardlong beans are cowpeas, not true beans — closer cousins to black-eyed peas than to green beans, which is why they laugh at heat that makes snap beans drop their flowers. Same trellis, different family, much better summer manners.

For the crop in general, see the Yardlong Bean growing guide. Browse all plant & pest guides.

Saving seeds

Orient Wonder is the yardlong bean most gardeners start with, and many never leave: smooth, dark-green, stringless pods that hang in pairs, stay tender longer than most types because the seeds develop slowly, and can reach 30 inches if you forget to pick them — which you will, once, and then never again. It is vigorous, heat-tolerant, and famously productive, the bean that makes a trellis look like it is working overtime. As an open-pollinated variety it comes true from seed: direct-sow after all danger of frost, when soil is at least 65 to 70°F — cold soil rots the seed — sow about an inch deep at the base of a sturdy trellis at least 6 feet tall. The full method is in the Saving seeds section of the Yardlong Bean guide.