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Guide botanique

Land Cress.

Barbarea verna

Prononciation bar-BARE-ee-uh VER-nuh

Aussi appelée American Cress, American Land-Cress, American Winter Cress, American Winter-Cress, American Wintercress, Belle Island Cress, Belle Isle cress, Common Wintercress

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Land Cress
Photo de Greg Walker (CC0) via gbif

Land cress is a hardy biennial often grown as a peppery salad green. It produces rosettes of dark green, pinnately lobed leaves that taste similar to watercress. You will find it thrives in cooler weather and is quite easy to manage in a garden bed.

En un coup d'œil

Niveau d'entretien
Facile
Type de plante
Biennial herb
Lumière
Full sun to partial shade
Lumière en intérieur
Soleil direct
Arrosage
Tous les 2 à 4 jours
Taille adulte
1 to 2 feet
Croissance
Rapide
Rusticité
USDA 5 à 9
Floraison
Mid to late spring

Entretien

Keep the soil consistently moist to prevent the leaves from becoming too spicy or tough. Watch for flea beetles which love to snack on the foliage. Harvest the outer leaves regularly to encourage new growth from the center.

Arrosage
Keep the soil damp but not waterlogged to ensure the best leaf flavor.
Engrais
Apply a balanced organic fertilizer once a month during the active growing season.
Taille
Regularly harvest outer leaves to keep the plant productive and prevent premature bolting.
Rempotage
Since it is typically grown as an annual or biennial, you will likely start fresh from seed each year.
Sol
Moist, fertile, well-draining soil
pH du sol
6.0 to 7.0
Température
-15 à 30°C
Humidité
40 à 70%

Sécurité

Humains
The plant is generally considered safe to eat in moderation, though it contains glucosinolates that may cause stomach upset if consumed in large quantities.
Enfants
There are no specific safety concerns for children, though standard supervision is advised to prevent ingestion of wild plants.
Allergènes de contact
Some individuals may experience mild skin irritation from the raw sap.
Allergènes aéroportés
The pollen can trigger mild symptoms in sensitive individuals during the peak flowering period.
Comestibilité
While the leaves are edible, they can become quite bitter and tough once the plant begins to flower.

Comment l'identifier

  • Dark green pinnately lobed leaves
  • Forms low growing basal rosettes
  • Small yellow four petaled flowers
  • Peppery scent when leaves crushed
Hauteur
0,3 à 0,6m
Envergure
0,2 à 0,4m
Feuilles
dark green, semi-evergreen
Fleurs
yellow, 0,5 à 1cm
Fruits
brown, Summer

Problèmes courants

  • Flea beetles — Small jumping beetles that create tiny shot holes in the foliage.
  • Downy mildew — Yellowing patches on leaves caused by high humidity and poor air circulation.

La cultiver

Multiplication
seed
Quand planter
spring, early autumn

Plant this in a dedicated cool season patch to avoid competition with summer vegetables that require different soil moisture levels.

Bonnes associations

  • Radish — They share similar growing requirements and timing.
  • Lettuce — They make excellent partners in a cool season salad garden.
  • Spinach — Both crops thrive in the cooler temperatures of spring and autumn.

Espèces similaires

  • Barbarea vulgaris — It is a very close relative with similar growth habits and culinary uses.

Science

Famille
Brassicaceae
Genre
Barbarea
Ordre
Brassicales
Classe
Magnoliopsida
Région d'origine
Southern Europe and Western Asia.
Préservation
This species is considered naturalized in many areas and is not of conservation concern.

It thrives in damp, disturbed soils and colonizes open spaces quickly through prolific seed production.

Intérêt pour la faune
early season nectar source, larval host plant
Pollinisateurs
abeilles, papillons, coléoptères
Utilisations
culinary greens, early spring salad addition, pollinator garden filler

Au fil des saisons

JFMAMJJASOND
Floraison
Fructification
Feuillage

Repères écologiques

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

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Is this plant invasive?
It can be aggressive in disturbed soils and may self seed freely in the garden.
Can I eat the flowers?
Yes, the flowers are edible and have a mild mustard flavor.

D'où vient le nom

The genus name Barbarea honors Saint Barbara, as the plant was traditionally harvested around her feast day in December. The species name verna means of the spring.

Bon à savoir

  • It is a member of the mustard family.
  • The leaves have a spicy, peppery flavor similar to watercress.
  • It is a biennial that often acts as an annual in cultivation.
  • It was historically used as a scurvy preventative by sailors.

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.