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Guide botanique

Winged Bean.

Psophocarpus tetragonolobus

Prononciation so-fo-KAR-pus tet-ra-go-no-LO-bus

Aussi appelée Four-angled Bean, Goa Bean, Goa-bean, Winged Bean, asparagus-pea, four-angle-bean, princess-pea, winged-bean

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Winged Bean
Photo de chiuluan (CC BY) via iNaturalist

The winged bean is a tropical legume known for its edible pods, leaves, and tubers. It thrives in warm, humid climates and grows as a vigorous climbing vine. You will love how productive this plant is in your garden.

Une autre photo de Winged Bean
Photo de Ong Jyh Seng (CC BY-SA) via iNaturalist

En un coup d'œil

Niveau d'entretien
Moyenne
Type de plante
Annual legume
Lumière
Full sun
Lumière en intérieur
Soleil direct
Arrosage
Tous les 2 à 4 jours
Taille adulte
3 to 4 meters
Croissance
Rapide
Rusticité
USDA 9 à 12
Floraison
Late summer to autumn

Entretien

Provide a sturdy trellis for this climber to scale as it grows quickly. Keep the soil consistently moist but not waterlogged to encourage pod production. Watch for yellowing leaves which can indicate poor drainage or nutrient deficiency.

Arrosage
Keep the soil evenly moist throughout the growing season.
Engrais
Use a balanced fertilizer low in nitrogen to support flowering.
Taille
Trim back excessive foliage to improve airflow and focus energy on pod development.
Rempotage
This plant is typically grown as an annual and does not require repotting.
Sol
Well draining loamy soil
pH du sol
6.0 to 7.0
Température
15 à 35°C
Humidité
60 à 90%
Résistance à la sécheresse
Faible
Durée de vie
Perennial, typically grown as an annual
Parfum
Léger
Résistance aux chevreuils et lapins
Moyenne

Signes qu'il faut rempoter

  • Roots growing out of the drainage holes.
  • Water running straight through the pot without soaking in.

Sécurité

Humains
Raw consumption of the seeds or pods can cause digestive distress due to high levels of trypsin inhibitors.
Enfants
The seeds are small and hard, posing a potential choking hazard if left unattended.
Allergènes de contact
The foliage can cause mild skin irritation in sensitive individuals.
Allergènes aéroportés
Pollen may trigger mild reactions in those with severe legume allergies.
Comestibilité
Always cook the pods and seeds thoroughly to neutralize anti-nutritional factors before consumption.

Comment l'identifier

  • Four distinct longitudinal wings on pods
  • Compound leaves with three leaflets
  • Bright blue or white pea flowers
  • Vigorous climbing vine habit
Hauteur
3 à 4m
Envergure
0,6 à 1m
Feuilles
green, deciduous
Fleurs
blue, white, purple, 2 à 4cm
Fruits
green, purple, Autumn

Problèmes courants

  • Powdery mildew — A white fungal growth appears on leaves during humid, stagnant conditions.
  • Aphids — Small insects that cluster on new growth and suck plant sap.

La cultiver

Multiplication
seed
Quand planter
Spring
Hivernage
In frost-prone areas, treat it as an annual and harvest before the first freeze. In tropical zones, cut back dead vines to encourage new growth in spring.
En pot
It can grow in large containers of at least 20 liters, provided you supply a tall trellis.

Seed Sowing

  1. 1. Soak seeds in water for 24 hours to soften the hard coat.
  2. 2. Plant seeds 2 cm deep in warm, well-draining soil.
  3. 3. Keep soil consistently moist until germination occurs.

Plant near tall crops to provide the necessary vertical space for the vines to spread.

Bonnes associations

  • Maïs — Corn provides a sturdy natural trellis for the climbing beans.
  • concombre — They share similar moisture and heat requirements.

Espèces similaires

  • Haricot commun — Both are nitrogen-fixing legumes used for their edible pods.

Science

Famille
Fabaceae
Genre
Psophocarpus
Ordre
Fabales
Classe
Magnoliopsida
Région d'origine
Tropical Asia and Papua New Guinea
Préservation
It is widely cultivated in tropical regions and is not considered threatened.

It is a perennial vine that acts as an annual in cooler climates, fixing nitrogen to thrive in nutrient-poor soils.

Intérêt pour la faune
nectar source
Pollinisateurs
abeilles, papillons
Utilisations
culinary vegetable, nitrogen-fixing cover crop, ornamental vine

Au fil des saisons

JFMAMJJASOND
Floraison
Fructification
Feuillage

Repères écologiques

Salinité
2/9
Réaction du sol
6/9
Lumière
8/9
Température
9/9
Humidité
7/9
Nutriments
5/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Do I need a trellis?
Yes, this is a vigorous climber that requires strong support.
Can I eat the leaves?
Yes, they are often used like spinach in stir-fries.

D'où vient le nom

The name Psophocarpus comes from Greek words meaning noisy fruit, referring to the sound the pods make when they dry and split.

Bon à savoir

  • The pods have four distinct wings running down their length.
  • It is a nitrogen-fixing legume that improves soil health.
  • The tubers are rich in protein compared to other root vegetables.
  • It thrives in hot, humid climates where other beans struggle.

Ta plante a mauvaise mine ?

Cette page est un guide général. Pocket Botanist diagnostique les problèmes directement à partir d'une photo de ta plante, adapte l'arrosage à sa luminosité et te prévient quand il faut t'en occuper.

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Ce guide a été généré par IA et vérifié avec la taxonomie du GBIF. Il s'agit d'informations générales, et non de conseils horticoles ou vétérinaires. Découvre comment nous concevons ces guides.