Vigna unguiculata subsp. sesquipedalis 'Red Noodle'
vegetableRed Noodle is a striking yardlong bean, a member of the cowpea family grown for its slender, deep burgundy pods that can reach 14 to 18 inches. Despite the name and looks, it grows like a vigorous pole bean and loves what ordinary beans dislike: heat and humidity. The fast climbing vines reach 5 to 10 feet and crop heavily over a long season, hanging their dramatic red pods in pairs. Picked young, the pods are tender, nutty, and slightly sweeter and denser than a green bean, excellent stir-fried (they hold their texture) - and the rich red color cooks to a deep green.
Sun
full sun
Water
Every 4 days
Harvest
~80 days
Difficulty
easy
Lifecycle
annual
One season, then done
Spacing
4-6 in apart on a trellis, rows 24-36 in
Planting Depth
1 in
Soil pH
5.5-6.5
Soil Type
Loam to sand, well-draining
Hardiness Zones
Zones 5 – 11
Grown as an annual — this range is its winter hardiness, but you can grow it for a single season in any zone.
When to Fertilize
Light feeding; legume inoculant at planting
Fertilizer
Low-nitrogen
Yardlong beans are a warm-season, heat-loving crop, so wait until all frost is past and the soil is thoroughly warm before sowing - they sulk in cold ground. Give them full sun (six or more hours) and a sturdy trellis, fence, or tepee at least six to eight feet tall, because the vines climb hard. They tolerate clay, loam, and sandy soils as long as drainage is good, and prefer a slightly acid pH of 5.5 to 6.5. Sow seed about 1 inch deep and 4 to 6 inches apart along the support, in rows 24 to 36 inches apart. Once established the vines are notably heat- and drought-tolerant, though steady moisture improves the pods. As a legume the crop fixes nitrogen, so feed lightly. Pick constantly to keep the vine producing.
Direct sow
Apr 29
Projected first harvest
Jul 18
Good neighbors that attract beneficial insects or deter pests
Proactive ways to stop trouble before it starts — tap a name with an arrow for its full guide
Cluster on new growth and can spread virus - rinse them off, encourage ladybugs, and treat hot spots with insecticidal soap
A white leaf coating in hot, humid spells - space and trellis for airflow and avoid wetting the foliage late in the day
Rotate with non-host crops, build organic matter, and interplant marigolds; some yardlong strains show resistance
Red Noodle bears in about 75 to 90 days and then keeps coming for weeks. Pick the pods young, while they are 12 to 18 inches long and still about pencil-thin and flexible, before the seeds swell and the pod goes fibrous. Harvest every day or two - frequent picking is the single biggest thing that keeps a yardlong vine cropping. Snip or pinch the pods at the stem to avoid tearing the vine. The deep red color turns dark green when cooked.
Cooked yardlong bean pods are light at about 47 calories per 100 g, with roughly 2.8 g protein, fiber, a useful 19 mg vitamin C, plus folate, vitamin A, and potassium. The young pods are eaten as a vegetable - stir-fried, steamed, or in curries - and hold their firm texture better than a snap bean.
For educational and informational purposes only — HomeSown is not medical, health, or other professional advice. Always positively identify any plant before handling or eating it; some plants, and some parts of otherwise-edible plants, are toxic. Consult a qualified professional before consuming or otherwise using any plant, especially if you are pregnant, nursing, taking medication, or have a health condition.