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Guide botanique

Vetiver.

Chrysopogon zizanioides

Prononciation kris-oh-PO-gon zi-zan-ee-OY-deez

Aussi appelée False beardgrass, Khuskhus Vetiver, cuscus grass, khus-khus, khus-khus grass, vetiver, vetiver grass

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Vetiver
Photo de Alan Rockefeller (CC BY) via iNaturalist

Vetiver is a hardy, clumping grass known for its incredibly deep and extensive root system. It is widely used for soil stabilization and erosion control in tropical climates. You will find it is quite resilient once established in your landscape.

En un coup d'œil

Niveau d'entretien
Facile
Type de plante
Perennial grass
Lumière
Full sun
Lumière en intérieur
Soleil direct
Arrosage
Tous les 3 à 7 jours
Taille adulte
5 to 8 feet
Croissance
Rapide
Rusticité
USDA 7 à 11
Floraison
Late summer to autumn

Entretien

Plant this grass in a sunny spot with plenty of space for its roots to spread. Keep the soil consistently moist until it is fully established. Watch for yellowing leaves, which may indicate a need for more nutrients or better drainage.

Arrosage
Keep the soil evenly moist, especially during the first year of growth.
Engrais
Apply a balanced fertilizer during the active growing season to encourage lush growth.
Taille
Cut back the foliage once or twice a year to maintain a tidy appearance.
Rempotage
Repot only if the plant becomes root bound in its container.
Sol
Well draining, adaptable to various soils
pH du sol
5.0 to 8.0
Température
-10 à 45°C
Humidité
40 à 90%
Résistance à la sécheresse
Élevée
Durée de vie
Perennial, typically 5 to 10 years
Parfum
Fort
Résistance aux chevreuils et lapins
Élevée

Signes qu'il faut rempoter

  • Roots growing out of the drainage holes
  • Stunted growth
  • Water running straight through the pot

Sécurité

Humains
This plant is generally considered non toxic to humans.
Enfants
The sharp leaf edges pose a minor risk of paper cuts to small children.
Allergènes de contact
The stiff leaves can cause minor skin abrasions if handled without gloves.
Allergènes aéroportés
The pollen may cause mild respiratory irritation in sensitive individuals during the flowering season.
Comestibilité
The roots are used for essential oil extraction and are not typically consumed as food.

Comment l'identifier

  • Tall, stiff, upright green blades
  • Dense, clumping growth habit
  • Fragrant, aromatic root system
  • Narrow, linear leaf structure
Hauteur
1 à 2m
Envergure
0,6 à 1,2m
Feuilles
green, evergreen
Fleurs
purple, brown, 15 à 30cm

Problèmes courants

  • Root rot — Occurs when the plant is grown in waterlogged soil for extended periods.

La cultiver

Multiplication
division, seed
Quand planter
spring, early summer
Hivernage
In colder regions, cut back the foliage to 20 cm and mulch heavily to protect the crown from freezing temperatures.
En pot
It grows well in large containers, but you should use a pot at least 40 cm deep to allow for root development.

Division

  1. Dig up a mature clump in spring.
  2. Use a sharp spade to divide the root ball into smaller sections.
  3. Ensure each section has healthy roots and foliage.
  4. Replant immediately in prepared soil.

Plant vetiver on the downhill side of a garden bed to catch nutrient runoff and prevent soil loss.

Bonnes associations

  • Lemongrass — They share similar environmental needs and look great together in a tropical garden.
  • Ginger — It thrives in the same warm, moist conditions as vetiver.

Espèces similaires

  • Lemongrass — Both are aromatic grasses used for their essential oils.
  • Cymbopogon nardus — They share a similar clumping growth habit and aromatic foliage.

Science

Famille
Poaceae
Genre
Chrysopogon
Ordre
Poales
Classe
Liliopsida
Région d'origine
Tropical and subtropical Asia.
Préservation
It is widely cultivated and not considered threatened in its native range.

It stabilizes riverbanks and slopes through its dense, deep, and vertical root network.

Intérêt pour la faune
erosion control, soil stabilization
Pollinisateurs
abeilles, papillons
Utilisations
erosion control, essential oil production, ornamental grass, perfumery

Au fil des saisons

JFMAMJJASOND
Floraison
Fructification
Feuillage

Repères écologiques

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

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Does it need a lot of water?
It is quite adaptable but thrives in moist, well drained soil.
Can I grow it in a pot?
Yes, but it requires a very large container to accommodate its extensive root system.

D'où vient le nom

The name Vetiver comes from the Tamil word vettiveru, while the scientific name Chrysopogon refers to the golden beard of the flower spikelets.

Bon à savoir

  • Vetiver oil is a base note in many high end perfumes.
  • The roots are used to make fragrant mats, fans, and baskets.
  • It is often planted on slopes to prevent landslides.
  • The plant is sterile and does not spread invasively by seed.

Aussi dans

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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.