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Guide botanique

Tiger orchid.

Grammatophyllum speciosum

Prononciation gram-uh-toh-FILL-um spee-SEE-oh-sum

Aussi appelée Giant Orchid, Sugar Cane Orchid, Tiger Orchid

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Tiger orchid
Photo de Ong Jyh Seng (CC BY-SA) via iNaturalist

The tiger orchid is a massive, stunning epiphyte known for being the largest orchid species in the world. It produces long, arching sprays of yellow flowers covered in striking brown spots. You'll find it growing naturally in the tropical rainforests of Southeast Asia.

Une autre photo de Tiger orchid
Photo de Richard Dimon (CC BY) via gbif

En un coup d'œil

Niveau d'entretien
Difficile
Type de plante
Epiphytic orchid
Lumière
Bright filtered light
Lumière en intérieur
Lumière vive indirecte
Arrosage
Tous les 3 à 7 jours
Taille adulte
25 feet
Croissance
Moyenne
Rusticité
USDA 10 à 12
Floraison
Late spring to summer

Entretien

This orchid needs plenty of space and high humidity to thrive. Keep an eye out for shriveled pseudobulbs, which indicate it needs more consistent moisture. Ensure it has excellent drainage to prevent root rot in its heavy root mass.

Arrosage
Keep the potting medium consistently moist but never soggy.
Engrais
Use a balanced orchid fertilizer during the active growing season.
Taille
Remove spent flower spikes once they have completely withered.
Rempotage
Repot only when the plant has clearly outgrown its container.
Sol
Orchid bark mix
pH du sol
5.5 to 6.5
Température
15 à 32°C
Humidité
60 à 90%
Résistance à la sécheresse
Faible
Durée de vie
Perennial, can live for many decades with proper care.
Résistance aux chevreuils et lapins
Moyenne

Signes qu'il faut rempoter

  • Roots growing over the edge of the container.
  • Potting medium breaking down into fine dust.
  • The plant becoming unstable in its current pot.

Sécurité

Humains
There are no reports of toxicity, but it is not intended for human consumption.
Enfants
Keep this massive plant away from small children to prevent injury from its heavy, woody pseudobulbs.
Allergènes de contact
The plant is not known to cause skin irritation.
Allergènes aéroportés
There are no known airborne allergens associated with this orchid.
Comestibilité
This plant is not considered edible and should not be consumed.

Comment l'identifier

  • Massive pseudobulbs reaching several feet
  • Long, strap like leathery leaves
  • Large yellow flowers with brown spots
  • Extremely thick and heavy root system
Hauteur
1,5 à 3m
Envergure
1 à 2m
Feuilles
dark green, evergreen
Fleurs
yellow, brown, maroon, 7 à 10cm

Problèmes courants

  • Scale insects — Small sap sucking insects that hide under leaves.
  • Root rot — Occurs when the potting medium stays too wet for too long.

La cultiver

Multiplication
division, seed
Quand planter
spring
Hivernage
Keep the plant in a warm, frost free environment throughout the winter. Reduce watering slightly but maintain high humidity.
En pot
It requires a very large, sturdy container or wooden crate to support its immense weight.

Division

  1. 1. Wait until the plant has finished blooming.
  2. 2. Carefully remove the plant from its container.
  3. 3. Use a sterilized blade to separate the pseudobulbs.
  4. 4. Ensure each division has at least three healthy bulbs.
  5. 5. Pot the divisions in a coarse, well draining orchid mix.

Group this orchid with other tropical epiphytes that enjoy consistent moisture and warmth.

Bonnes associations

  • Asplenium nidus — They share similar high humidity and shade requirements.

Espèces similaires

  • Grammatophyllum scriptum — A smaller relative that is much easier to manage in a collection.

Science

Famille
Orchidaceae
Genre
Grammatophyllum
Ordre
Asparagales
Classe
Liliopsida
Région d'origine
Southeast Asia, including Malaysia, Indonesia, and the Philippines.
Préservation
It is protected under CITES Appendix II due to overcollection in the wild.

It survives in the wild by growing on large tree branches where it captures nutrients from decaying organic matter.

Intérêt pour la faune
nectar source
Pollinisateurs
abeilles
Utilisations
ornamental specimen, botanical garden display

Au fil des saisons

JFMAMJJASOND
Floraison
Fructification
Feuillage

Repères écologiques

Salinité
1/9
Réaction du sol
6/9
Lumière
7/9
Température
8/9
Humidité
7/9
Nutriments
5/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

How much light does it need?
It prefers bright, filtered light to bloom well.
Can I grow it indoors?
Only if you have a very large greenhouse, as it is far too big for a typical home.

D'où vient le nom

The name Grammatophyllum comes from the Greek words for letter and leaf, referring to the markings on the flowers.

Bon à savoir

  • It is commonly called the Tiger Orchid due to its spotted flower pattern.
  • The plant can grow to be truly massive, requiring significant space.
  • It often grows as an epiphyte on large trees in its native range.

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.