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Plants

yellow dragon fruit

Selenicereus megalanthus

Family: Cactaceae · Genus: Selenicereus

yellow pitahaya

Placenta II Low No biomass production
CC BY · GBIF

An epiphytic, climbing cactus native to northern South America (Colombia, Ecuador, Peru and Bolivia), grown for its yellow-skinned, white-fleshed and very sweet dragon fruit. The yellow skin bears small spiny areoles, unlike the Selenicereus undatus pitayas. It has perhaps the largest flowers of any cactus, opening at night. It is a CAM cactus, adapted to milder, higher-altitude climates.

📚 Synonyms

Scientific synonyms: Hylocereus megalanthus (K.Schum. ex Vaupel) Ralf Bauer, Cereus megalanthus K.Schum. ex Vaupel

Other common names: pitaia-amarela

Götsch succession

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

Environment

Light requirement
Partial sun
Water requirement
Low
Drought tolerance
High
Waterlogging tolerance
None
Soil pH range
5.5–7
Preferred soil texture
Sandy, Loamy
Hardiness zones
10–11
Frost tolerance
0.0 °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
24 months
Productive lifespan
20 years

Biomes & climate

Köppen classes

Where it fits in a guild

Yellow 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

Prefers mild, higher-altitude climates (it does not tolerate extreme heat as well as the red and white pitayas) and light partial shade. A sturdy support and well-drained soil. The yellow fruit has deciduous spines on the skin, removed before sale. Flowering is nocturnal; it usually requires cross-pollination.

✂️ Management & Pruning

Management is the same as the other pitayas, with a sturdy support: train stems to the top and let the crown hang, where it fruits. Tipping the stem ends induces branching; removing old, thin and inward-facing stems aerates the plant and prevents fungal disease — a relevant concern as it prefers milder, more humid climates. Keep light partial shade. Healthy pruned stems serve as cuttings. It usually requires cross-pollination; train stems of more than one cultivar nearby for good fruit set.

📅 Phenology

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

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

❓ Frequently asked questions

How long until the first harvest of yellow dragon fruit?

The first harvest of yellow dragon fruit comes around 24 months after planting.

What spacing is recommended for yellow dragon fruit?

The recommended spacing for yellow dragon fruit is 2–3 m.

How tall does yellow dragon fruit grow?

At maturity, yellow dragon fruit reaches 2–5 m tall.

When does yellow dragon fruit fruit?

Fruiting of yellow dragon fruit occurs in January, February, March, April, May.

When does yellow dragon fruit flower?

Flowering of yellow dragon fruit occurs in November, December, January, February, March.

What stage and stratum does yellow dragon fruit occupy in a syntropic system?

In a syntropic system, yellow 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 megalanthus (scientific_name, synonyms, functions, light_need)
  2. MDPI Foods — Yellow Pitahaya (Selenicereus megalanthus) review (biomes, koppen_classes, fruit, frost_tolerance_c, hardiness_zone_min, hardiness_zone_max)
  3. Gardening Know How — Growing Dragon Fruit (pruning, fruiting) (pruning_notes, time_to_first_harvest_months)
  4. GBIF (gbif_taxon_key, scientific_name)

External references

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