North America Non-native Plant

Nephelium

Botanical name: Nephelium

USDA symbol: NEPHE2

Native status: Non-native, reproduces and persists in the wild in Pacific Basin excluding Hawaii  

Nephelium: A Mysterious Tropical Tree Genus Worth Understanding If you’ve stumbled across the name nephelium in your gardening research, you might be scratching your head wondering what exactly this plant is all about. Don’t worry – you’re not alone! Nephelium is one of those plant names that doesn’t get tossed ...

Nephelium: A Mysterious Tropical Tree Genus Worth Understanding

If you’ve stumbled across the name nephelium in your gardening research, you might be scratching your head wondering what exactly this plant is all about. Don’t worry – you’re not alone! Nephelium is one of those plant names that doesn’t get tossed around at your typical garden center chat.

What is Nephelium?

Nephelium is a genus of tropical trees that belongs to the soapberry family. While the name might not ring a bell, this plant group has some pretty interesting characteristics that make it worth learning about, even if detailed growing information is surprisingly hard to come by.

Native Status and Where It Grows

Here’s where things get interesting – nephelium is considered a non-native species that has been introduced and now reproduces on its own in the wild without human help. It tends to persist in the Pacific Basin, though notably excluding Hawaii. Currently, it’s documented as growing in Palau.

The Challenge with Growing Nephelium

If you’re hoping to add nephelium to your garden, you might hit a bit of a roadblock. Information about growing this plant genus is remarkably scarce. We don’t have solid details about:

  • Specific growing conditions it prefers
  • USDA hardiness zones where it thrives
  • Mature size and growth habits
  • Soil and water requirements
  • Propagation methods

Should You Plant Nephelium?

Given the limited information available and its non-native status, most gardeners might want to think twice before seeking out nephelium for their landscapes. While it’s not listed as invasive, the fact that it reproduces spontaneously in the wild suggests it’s quite adaptable – which could be either good or concerning depending on your local ecosystem.

Consider Native Alternatives Instead

Since detailed growing information for nephelium is so limited, and given its non-native status, you might want to explore native tree options for your area instead. Native plants typically:

  • Support local wildlife and pollinators better
  • Require less maintenance once established
  • Are better adapted to local growing conditions
  • Come with plenty of reliable growing information

The Bottom Line

Nephelium remains something of a gardening mystery. While it’s clearly capable of growing and reproducing in tropical Pacific regions, the lack of detailed horticultural information makes it a challenging choice for most gardeners. If you’re drawn to tropical trees, you’ll likely have better success and more support choosing well-documented native species or widely cultivated non-natives with established growing guides.

Sometimes the most interesting plants are the ones that keep their secrets – and nephelium certainly seems to be one of those enigmatic species that prefers to remain a bit mysterious!

Nephelium

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Sapindales

Family

Sapindaceae Juss. - Soapberry family

Genus

Nephelium L. - nephelium

Species

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA