Nephelium lappaceum

Rambutan (Nephelium lappaceum)
Scientific name	Nephelium lappaceum
Genus	Nephelium
Family	Sapindaceae
Order	Sapindales
Growth and size	Tropical evergreen tree; 8–20 m
Climate and site	Moist, deep, well-drained soil; humid lowland climate
Propagation	Fresh seed 2–4 weeks; grafted trees fruit earlier
Years to fruit	N/A
Fruit and harvest	Warm wet-season crop; red or yellow spiny fruit with translucent aril

Description

A humid-tropical tree producing soft-spined red or yellow fruits around a translucent sweet aril. It needs warmth, moisture, shelter, and a deep aerated root zone.

The accepted genus, family, and order are Nephelium, Sapindaceae, and Sapindales.^[1]

Cultivation

Rambutan is a humid lowland Southeast Asian tree. It needs high humidity, deep fertile soil, steady water, shelter from wind, and a short drier or cooler cue in some climates to initiate flowering.

Moist, deep, well-drained soil; humid lowland climate. Provide airflow and avoid standing water unless the species is being grown in a deliberately wet habitat.

Soil and water

Moist, deep, well-drained soil; humid lowland climate; preserve native drainage and organic-matter conditions rather than treating all tropical fruit trees alike.

Sun and humidity

Most plants in this group prefer bright light; young trees may need shelter while roots establish. Humidity should be paired with airflow, not stagnant enclosure.

Seasonal changes

Flowering and harvest vary with local wet/dry or cool/warm cycles. Adjust irrigation to the species' native rhythm and protect warm-tropical plants during cool weather.

Propagation

Fresh seed 2–4 weeks; grafted trees fruit earlier. Seedlings may vary in fruit quality and maturity; use grafting or other clonal methods when a named selection must be preserved.

Flowering, fruiting, and harvest

Warm wet-season crop; red or yellow spiny fruit with translucent aril. Local climate, cultivar, rootstock, pollination, and rainfall can shift the calendar substantially.

Fruit and uses

The ripe fruit is eaten fresh and may be used in drinks, preserves, desserts, or regional savory preparations. Handle ripe fruit carefully because many tropical fruits soften rapidly after harvest.

Photos

Field view or fruit detail of Nephelium lappaceum. Wikimedia Commons file page.

References

• Useful Tropical Plants: Nephelium lappaceum

1. [1] Plants of the World Online.

Image credits

• Rambutan fruits (Nephelium lappaceum).JPG — Wikimedia Commons file page; creator and license are recorded on the source page.
• Rambutan tree (Nephelium lappaceum) 02 crop.JPG — Wikimedia Commons file page; creator and license are recorded on the source page.