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white-fleshed dragon fruit

Selenicereus undatus

Family: Cactaceae · Genus: Selenicereus

white pitahaya, dragon fruit

Placenta II Low No biomass production
capacoscar · CC BY · GBIF

An epiphytic, climbing cactus (originating between Mexico and Honduras) grown for its white-fleshed, pink-skinned dragon fruit. It grows on supports, walls or trees, clinging by aerial roots. It has large white flowers that open at night, pollinated by bats and moths. With CAM metabolism, it is drought-tolerant and suited to warm climates.

📚 Synonyms

Scientific synonyms: Hylocereus undatus (Haw.) Britton & Rose, Cereus undatus Haw.

Other common names: pitaia-branca

Götsch succession

Götsch stage
Placenta II
Ecological role
Pioneer
Primary stratum
Low
Strata
Low, Ground cover
Biomass class
No biomass production

Environment

Light requirement
Full sun
Water requirement
Low
Drought tolerance
High
Waterlogging tolerance
None
Soil pH range
5.5–7
Preferred soil texture
Sandy, Loamy
Hardiness zones
10–12
Frost tolerance
-2.0 °C

Morphology

Mature height
2–5 m
Recommended spacing
2–3 m
Root system
Fibrous
Root depth
Shallow
Growth rate
Fast
Lifespan
15–30 years
Time to first harvest
18 months
Productive lifespan
20 years

Biomes & climate

Köppen classes

Where it fits in a guild

White-fleshed dragon fruit takes the Low stratum in the Placenta II phase of succession — in a guild it shares the line with species from the other strata, each harvesting light at its own height, in its own time.

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Emergent High Medium Low · ≈5 m Ground cover

🪴 Cultivation

Needs a sturdy support (post, fence, tree) to climb. An epiphytic cactus with shallow roots and low water needs; it does not tolerate waterlogging. Flowering is nocturnal; many cultivars need cross- or hand-pollination for good fruit set.

✂️ Management & Pruning

Management of the climbing cactus on a support: train the stems up the post/trellis to the top and let the 'crown' hang there, since fruiting concentrates on mature pendent stems. Do formative pruning by tipping the stem ends to induce branching, and production pruning by removing old, thin, diseased or inward-growing stems — this improves airflow, reduces fungal issues and directs energy to productive stems. Healthy, well-lignified pruned segments can be used as propagation cuttings or left as dry mulch. Excess buds can be thinned for larger fruit.

📅 Phenology

Flowering months: November, December, January, February, March

Fruiting months: December, January, February, March, April

❓ Frequently asked questions

How long until the first harvest of white-fleshed dragon fruit?

The first harvest of white-fleshed dragon fruit comes around 18 months after planting.

What spacing is recommended for white-fleshed dragon fruit?

The recommended spacing for white-fleshed dragon fruit is 2–3 m.

How tall does white-fleshed dragon fruit grow?

At maturity, white-fleshed dragon fruit reaches 2–5 m tall.

When does white-fleshed dragon fruit fruit?

Fruiting of white-fleshed dragon fruit occurs in December, January, February, March, April.

When does white-fleshed dragon fruit flower?

Flowering of white-fleshed dragon fruit occurs in November, December, January, February, March.

What stage and stratum does white-fleshed dragon fruit occupy in a syntropic system?

In a syntropic system, white-fleshed dragon fruit belongs to the placenta ii stage, occupying the low stratum.

Functions

🍎 Fruit Ornamental 🍯 Melliferous 🐝 Attracts pollinators

Propagation

Cutting, Seed

Citations

  1. Wikipedia — Selenicereus undatus (scientific_name, synonyms, functions, light_need)
  2. North Carolina Extension Gardener Plant Toolbox (common_names, functions, drought_tolerance)
  3. Gardening Know How — Growing Dragon Fruit (pruning, hardiness, fruiting) (pruning_notes, frost_tolerance_c, hardiness_zone_min, hardiness_zone_max, time_to_first_harvest_months)
  4. GBIF (gbif_taxon_key, scientific_name)

External references

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