Aller au contenu

Guide botanique

Common sowthistle.

Sonchus oleraceus

Prononciation SON-kus oh-ler-AY-see-us

Aussi appelée Common Sow-Thistle, Common Sowthistle

Télécharger dans l'App StoreDisponible sur Google Play

Common sowthistle
Photo de Gavin Slater (CC BY) via iNaturalist

This common plant is a hardy annual that often pops up as a weed in gardens and disturbed soil. It produces yellow, dandelion-like flowers and has milky sap inside its stems. While many consider it a nuisance, it is actually edible and has a long history of use in foraging.

En un coup d'œil

Niveau d'entretien
Facile
Type de plante
Annual herb
Lumière
Full sun to partial shade
Lumière en intérieur
Soleil direct
Arrosage
Tous les 3 à 7 jours
Taille adulte
3 to 4 feet
Croissance
Rapide
Rusticité
USDA 6 à 10
Floraison
Spring to autumn

Entretien

This plant is quite resilient and typically manages itself in most outdoor environments. Watch for aphids or powdery mildew if you are growing it in a container. It thrives best when it has plenty of space and consistent access to sunlight.

Arrosage
Keep the soil consistently moist but not waterlogged for best growth.
Engrais
A balanced liquid fertilizer can be applied occasionally if the soil is poor.
Taille
Deadhead spent flowers to prevent unwanted seed spread throughout your garden.
Rempotage
Since it is an annual, you will generally be replanting it from seed each season.
Sol
Well-draining, fertile soil
pH du sol
6.0 to 7.5
Température
-5 à 35°C
Humidité
30 à 80%
Résistance à la sécheresse
Moyenne
Durée de vie
Annual, typically 6 to 9 months.
Résistance aux chevreuils et lapins
Moyenne

Signes qu'il faut rempoter

  • Roots growing out of the drainage holes.
  • Stunted growth despite regular watering.

Sécurité

Humains
It is generally considered non toxic to humans.
Enfants
There are no specific safety concerns for children, though the milky sap can be messy.
Allergènes de contact
The milky sap can cause mild skin irritation in sensitive individuals.
Allergènes aéroportés
Pollen may cause mild allergic reactions in susceptible people.
Comestibilité
While young leaves are edible, older leaves become bitter and may contain high levels of nitrates if grown in nitrogen rich soil.

Comment l'identifier

  • Yellow dandelion like flower heads
  • Leaves with prickly, toothed margins
  • Hollow, brittle stems with milky sap
  • Basal rosette of lobed leaves
Hauteur
0,3 à 1m
Envergure
0,2 à 0,5m
Feuilles
green, blue-green, deciduous
Fleurs
yellow, 1,5 à 2,5cm
Fruits
brown, Summer to autumn

Problèmes courants

  • Aphids — Small insects that cluster on new growth and flower buds.
  • Powdery mildew — A fungal infection causing white dusty patches on leaves.

La cultiver

Multiplication
seed
Quand planter
spring, autumn
Hivernage
It usually dies back after the first hard frost, so no special care is needed.
En pot
It grows easily in pots, but is rarely cultivated intentionally due to its weedy nature.

Seed

  1. Collect seeds from mature flower heads once they turn fluffy.
  2. Scatter seeds on moist soil in early spring.
  3. Keep the soil lightly moist until germination occurs.

Keep it away from your primary vegetable beds to prevent it from becoming a nuisance.

Bonnes associations

  • Lettuce — They share similar growing requirements.

Espèces similaires

  • Pissenlit — Both have yellow flowers and similar rosette growth habits.
  • spiny sowthistle — It looks very similar but has sharper, pricklier leaf edges.

Science

Famille
Asteraceae
Genre
Sonchus
Ordre
Asterales
Classe
Magnoliopsida
Région d'origine
Europe, North Africa, and Western Asia.
Préservation
It is a widespread weed and is not of conservation concern.

It thrives in disturbed habitats like roadsides and gardens where it quickly outcompetes other plants for light.

Intérêt pour la faune
nectar source, larval host plant
Pollinisateurs
abeilles, papillons, coléoptères
Utilisations
edible greens, poultry feed, medicinal tea

Au fil des saisons

JFMAMJJASOND
Floraison
Fructification
Feuillage

Repères écologiques

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

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Is Sonchus oleraceus a weed?
Yes, it is widely considered an agricultural and garden weed due to its rapid growth.
Can I eat it?
Yes, young leaves are often eaten raw in salads or cooked like spinach.

D'où vient le nom

The genus name Sonchus comes from the Greek word for hollow, referring to the stems, while oleraceus means vegetable or garden herb.

Bon à savoir

  • Commonly known as sow thistle because it was traditionally fed to nursing sows.
  • The leaves are often compared to dandelion greens in flavor.
  • It is a highly successful colonizer of disturbed soils worldwide.
  • The plant contains a milky latex sap that flows when stems are broken.

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.

Télécharger dans l'App StoreDisponible sur Google Play

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.