Job's tears.

En un coup d'œil

Niveau d'entretien

Facile

Type de plante

Annual grass

Lumière

Full sun to partial shade

Lumière en intérieur

Lumière vive indirecte

Arrosage

Tous les 2 à 4 jours

Taille adulte

3 to 6 feet

Croissance

Rapide

Rusticité

USDA 9 à 11

Floraison

Mid to late summer

Entretien

Keep the soil consistently moist because this plant loves water. Watch for yellowing leaves which often signal that the soil has dried out too much. Ensure it gets plenty of warmth to thrive.

Arrosage

Keep the soil damp at all times as this plant is semi aquatic.

Engrais

Feed with a balanced liquid fertilizer once a month during the growing season.

Taille

Trim back dead or damaged foliage to keep the plant looking tidy.

Rempotage

Since it is typically grown as an annual, you usually do not need to repot it.

Sol

Rich, loamy, moisture retentive soil

pH du sol

6.0 to 7.5

Température

10 à 35°C

Humidité

60 à 90%

Résistance à la sécheresse

Faible

Durée de vie

Tender perennial, typically 1 to 3 years

Résistance aux chevreuils et lapins

Moyenne

Sécurité

Humains

The plant is generally considered non-toxic, but the seeds are extremely hard and pose a choking hazard.

Enfants

The hard, bead-like seeds are a significant choking hazard for small children.

Allergènes de contact

The leaves have sharp, serrated edges that can cause minor skin abrasions.

Allergènes aéroportés

The pollen may cause mild seasonal allergies in sensitive individuals.

Comestibilité

The hard outer shell of the seed must be removed before consumption to avoid dental damage.

Comment l'identifier

• Broad, lance shaped green leaves
• Hard, shiny, tear shaped seeds
• Tall, clumping grass habit
• Sturdy, bamboo like stems

Hauteur

1 à 2m

Envergure

0,6 à 1m

Feuilles

green, deciduous

Fleurs

white, green, 0,5 à 1cm

Fruits

white, grey, blue, Autumn

Problèmes courants

• Aphids — Small insects that cluster on new growth and suck plant sap.
• Rust — Fungal infection causing orange or brown spots on the foliage.

La cultiver

Multiplication

seed

Quand planter

Spring

Hivernage

In cold climates, treat as an annual and compost after the first frost. If in a pot, move to a frost-free area and keep the soil barely moist.

En pot

It grows well in large pots of at least 30 centimeters in diameter, provided you keep the soil very wet.

Group this grass with other moisture-loving plants to maintain a consistent microclimate.

Bonnes associations

• Canna — They share similar moisture requirements and create a lush tropical look.
• Taro — Both plants thrive in wet, high-humidity environments.

Espèces similaires

• Maïs — They are both members of the grass family with similar growth habits.

Science

Famille

Poaceae

Genre

Coix

Ordre

Poales

Classe

Liliopsida

Région d'origine

Tropical Asia

Préservation

This species is widely naturalized and not of conservation concern.

It naturally inhabits marshy areas and stream banks where it can access constant moisture.

Intérêt pour la faune

seeds provide food for birds

Pollinisateurs

abeilles, papillons

Utilisations

ornamental grass, jewelry making, culinary grain, traditional medicine

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Can I grow this in a pot?

Yes, it grows well in large containers if kept consistently moist.

Is it an annual or perennial?

It is a tender perennial often grown as an annual in cooler climates.

D'où vient le nom

The genus name Coix is an ancient Greek term for a type of palm, while the specific epithet lacryma-jobi translates to Job's tears.

Bon à savoir

• It is often called Job's Tears because the seeds resemble teardrops.
• The seeds are used in some cultures to make tea or porridge.
• It thrives in wet, boggy soil where other grasses might struggle.