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Guide botanique

Yardlong Bean.

Vigna unguiculata

Prononciation VIG-nuh un-gwik-yoo-LAY-tuh

Aussi appelée Black-eyed Pea, Blackeyed Pea, Cowpea, Cuckold's-Increase

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Yardlong Bean
Photo de Oleksandr Shynder (CC BY) via iNaturalist

The yardlong bean is a vigorous climber that produces incredibly long, slender pods perfect for stir fries. It thrives in warm weather and loves to scramble up a sturdy trellis. You will enjoy a bountiful harvest if you keep it well fed and watered.

Une autre photo de Yardlong Bean
Photo de Afsar Nayakkan (CC BY) via gbif

En un coup d'œil

Niveau d'entretien
Facile
Type de plante
Annual vegetable
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 11
Floraison
Mid to late summer

Entretien

Provide a strong trellis for the vines to climb as they grow quite tall. Watch for wilting leaves which indicate the plant needs more water during hot spells. Keep an eye out for aphids on the tender new growth.

Arrosage
Keep the soil consistently moist but not waterlogged to ensure the best pod production.
Engrais
Apply a balanced vegetable fertilizer every few weeks once the plant begins to flower.
Taille
Trim back excessive side shoots if the plant becomes too crowded to improve airflow.
Rempotage
These are annuals and are typically grown directly in the garden soil.
Sol
Well draining loamy soil
pH du sol
6.0 to 7.0
Température
15 à 35°C
Humidité
40 à 70%

Sécurité

Humains
The raw seeds contain compounds that can cause digestive distress if consumed in large quantities.
Enfants
The seeds are small and pose a choking hazard to young children.
Allergènes de contact
The foliage can cause mild skin irritation in sensitive individuals.
Allergènes aéroportés
Pollen may trigger mild reactions in those with legume allergies.
Comestibilité
Always cook the beans thoroughly before eating to neutralize lectins.

Comment l'identifier

  • Extremely long slender green pods
  • Vining growth habit
  • Trifoliate bright green leaves
  • Small pale yellow or purple flowers
Hauteur
0,3 à 1m
Envergure
0,3 à 0,6m
Feuilles
green, deciduous
Fleurs
white, yellow, purple, 1 à 2cm
Fruits
green, yellow, brown, Late summer to autumn

Problèmes courants

  • Aphids — Small insects that cluster on new growth and suck plant sap.
  • Root rot — Fungal infection caused by overly wet or poorly drained soil.

La cultiver

Multiplication
seed
Quand planter
spring, early summer

Plant cowpeas alongside corn to maximize space and improve soil fertility simultaneously.

Bonnes associations

  • Maïs — Corn provides a natural trellis for the cowpea vines to climb.
  • concombre — Cowpeas provide nitrogen to the soil which benefits heavy feeders like cucumbers.

À éloigner de

  • Oignon — Onions may inhibit the growth of legumes when planted in close proximity.

Espèces similaires

  • Mung bean — Shares similar growth habits and environmental requirements.
  • Vigna angularis — Another member of the Vigna genus with similar cultural needs.

Science

Famille
Fabaceae
Genre
Vigna
Ordre
Fabales
Classe
Magnoliopsida
Région d'origine
Central and West Africa
Préservation
Not of conservation concern as it is a widely cultivated agricultural crop.

This plant survives in hot, arid environments by developing a deep root system and maturing quickly.

Intérêt pour la faune
nectar source, nitrogen fixer
Pollinisateurs
abeilles, papillons
Utilisations
culinary, cover crop, forage

Au fil des saisons

JFMAMJJASOND
Floraison
Fructification
Feuillage

Repères écologiques

Salinité
2/9
Réaction du sol
6/9
Lumière
8/9
Température
8/9
Humidité
4/9
Nutriments
5/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Can I grow cowpeas in a container?
Yes, they grow well in large pots with adequate drainage.
When should I harvest the pods?
Harvest when the pods are firm and full for fresh eating, or wait until they dry for storage.

D'où vient le nom

The genus name Vigna honors the Italian botanist Domenico Vigna, while unguiculata refers to the claw-like shape of the flower petals.

Bon à savoir

  • Cowpeas are not actually peas but are more closely related to mung beans.
  • They are a staple ingredient in the Southern United States dish known as Hoppin' John.
  • The plants enrich the soil by fixing nitrogen from the air.
  • They thrive in hot weather where other beans might fail.

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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Télécharger l'appli

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.