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Guide botanique

Dragon Fruit.

Selenicereus undatus

Prononciation seh-len-ih-SEE-ree-us un-DAY-tus

Aussi appelée Nightblooming Cactus

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Dragon Fruit
Photo de J. L. Gómez-Hechavarría (CC BY) via iNaturalist

This stunning climbing cactus produces vibrant, scale covered fruit that looks just like a dragon. It thrives in warm, sunny spots and loves to scramble over trellises. You will enjoy its massive, fragrant white flowers that bloom only at night.

Une autre photo de Dragon Fruit
Photo de capacoscar (CC BY) via gbif

En un coup d'œil

Niveau d'entretien
Moyenne
Type de plante
Cactus
Lumière
Full sun
Lumière en intérieur
Soleil direct
Arrosage
Tous les 7 à 14 jours
Taille adulte
20 feet
Croissance
Rapide
Rusticité
USDA 10 à 12
Floraison
Late spring to early autumn

Entretien

Provide a sturdy trellis for this plant to climb as it grows quite heavy. Watch for yellowing stems which often signal too much moisture in the soil. Ensure the plant gets plenty of sun to encourage fruit production.

Arrosage
Let the soil dry out significantly between waterings to prevent root rot.
Engrais
Feed with a balanced fertilizer during the active growing season.
Taille
Trim back long stems to encourage branching and keep the plant manageable.
Rempotage
Move to a larger container once the roots fill the current pot.
Sol
Well draining cactus mix
pH du sol
6.0 to 7.0
Température
10 à 35°C
Humidité
40 à 70%
Résistance à la sécheresse
Moyenne
Durée de vie
Perennial, typically 10 to 20 years
Parfum
Fort
Résistance aux chevreuils et lapins
Moyenne

Signes qu'il faut rempoter

  • Roots growing out of the drainage holes
  • Stunted growth during the active season
  • Soil drying out too quickly after watering

Sécurité

Humains
The plant is non toxic to humans, though the spines can cause mechanical irritation.
Enfants
Keep away from small children due to the sharp spines on the stems.
Allergènes de contact
The small spines on the stems can cause skin irritation upon contact.
Allergènes aéroportés
There are no notable respiratory allergens associated with this plant.
Comestibilité
Ensure fruit is sourced from reliable growers to avoid potential pesticide residues on the skin.

Comment l'identifier

  • Three sided succulent stems
  • Small spines along stem ridges
  • Large white nocturnal flowers
  • Bright pink scaly fruit
  • White flesh with tiny seeds
Hauteur
3 à 6m
Envergure
1 à 3m
Feuilles
green, evergreen
Fleurs
white, yellow, 15 à 30cm
Fruits
pink, red, Summer to autumn

Problèmes courants

  • Mealybugs — Small white cottony insects that feed on plant sap.
  • Stem rot — Fungal decay caused by excessive moisture or poor drainage.

La cultiver

Multiplication
cuttings, seed
Quand planter
spring, summer
Hivernage
Move the plant indoors or into a greenhouse if temperatures drop below 10 degrees Celsius. Keep the soil drier during the winter months to prevent root rot.
En pot
It grows well in large containers with a minimum size of 20 liters to accommodate its root system.

Stem Cuttings

  1. 1. Cut a healthy stem segment about 20 centimeters long.
  2. 2. Allow the cut end to callous over for several days in a dry place.
  3. 3. Insert the calloused end into a well draining cactus potting mix.
  4. 4. Keep the soil lightly moist until roots develop.

Pair with other succulents that enjoy bright light and infrequent watering to simplify your care routine.

Bonnes associations

  • Aloès — They share similar light and water requirements.
  • Plante de jade — Both plants thrive in well draining soil and bright conditions.

Espèces similaires

  • Selenicereus megalanthus — It is a closely related species that produces yellow skinned fruit.

Science

Famille
Cactaceae
Genre
Selenicereus
Ordre
Caryophyllales
Classe
Magnoliopsida
Région d'origine
Central and South America
Préservation
This species is widely cultivated and not considered threatened in its native range.

It grows as an epiphyte or lithophyte in tropical forests, using its roots to climb trees or rocks for better light access.

Intérêt pour la faune
nectar source
Pollinisateurs
papillons de nuit, abeilles
Utilisations
ornamental, culinary fruit, container plant

Au fil des saisons

JFMAMJJASOND
Floraison
Fructification
Feuillage

Repères écologiques

Salinité
2/9
Réaction du sol
6/9
Lumière
8/9
Température
8/9
Humidité
4/9
Nutriments
5/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Does it need a trellis?
Yes, as a climbing cactus it requires sturdy support to grow properly.
How often should I water it?
Water when the top few centimeters of soil feel dry to the touch.

D'où vient le nom

Selenicereus comes from the Greek word for moon, referring to its nocturnal blooms. Undatus refers to the wavy margins of the stems.

Bon à savoir

  • The fruit is commonly known as dragon fruit or pitaya.
  • It is a climbing cactus that uses aerial roots to attach to surfaces.
  • The plant can produce multiple crops of fruit in a single season.
  • It thrives in tropical climates with high light intensity.

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.