North America Native Plant

Oriental Trema

Botanical name: Trema orientalis var. argentea

USDA symbol: TRORA

Life cycle: perennial

Habit: shrub

Native status: Native to Pacific Basin excluding Hawaii  

Oriental Trema: A Pacific Native Worth Considering for Your Garden If you’re looking to add native Pacific plants to your landscape, you might want to get acquainted with Oriental trema (Trema orientalis var. argentea). This perennial shrub brings a piece of authentic Pacific Basin flora to your garden, though admittedly, ...

Oriental Trema: A Pacific Native Worth Considering for Your Garden

If you’re looking to add native Pacific plants to your landscape, you might want to get acquainted with Oriental trema (Trema orientalis var. argentea). This perennial shrub brings a piece of authentic Pacific Basin flora to your garden, though admittedly, it’s not the most well-documented plant in the gardening world.

What Is Oriental Trema?

Oriental trema is a native shrub that calls the Pacific Basin home, specifically thriving in Guam and Palau. As a perennial, this multi-stemmed woody plant typically stays under 13 to 16 feet tall, making it a manageable size for most garden spaces. Like most shrubs, it develops several stems from near the ground level, creating a bushy, natural appearance.

Where Does It Grow Naturally?

This native beauty is found naturally throughout the Pacific Basin, with the exception of Hawaii. Currently, you can find it growing wild in Guam and Palau, where it has adapted to the local climate and growing conditions over many years.

Why Consider Oriental Trema for Your Garden?

Here’s the honest truth: Oriental trema is something of a mystery plant when it comes to detailed growing information. However, there are several compelling reasons why Pacific region gardeners might want to give it a shot:

  • It’s a true native species, supporting local ecosystem health
  • As a perennial shrub, it provides year-round structure to your landscape
  • Its moderate size makes it versatile for different garden spaces
  • Native plants are typically well-adapted to local conditions once established

The Challenge: Limited Growing Information

We’ll be upfront with you – detailed growing information for this specific variety is surprisingly scarce. Unlike many popular garden plants, Oriental trema hasn’t received much attention from the gardening community, which means we’re missing some key details about:

  • Specific soil preferences
  • Water requirements
  • Sun exposure needs
  • Propagation methods
  • Specific wildlife benefits

What We Do Know About Growing Oriental Trema

While specific care instructions are limited, we can make some educated assumptions based on its native habitat. Since it naturally grows in the Pacific Basin region, it likely prefers:

  • Warm, tropical to subtropical conditions
  • Well-draining soil (most Pacific native shrubs prefer this)
  • Regular moisture, especially during establishment
  • Protection from harsh winds in exposed locations

Should You Plant It?

If you’re gardening in Guam, Palau, or similar Pacific climates, Oriental trema could be an interesting addition to your native plant collection. Since there’s no indication that it’s invasive or problematic, it appears to be a safe choice for supporting local biodiversity.

However, the lack of detailed growing information means you’d be somewhat pioneering in your approach. If you’re comfortable with some trial and error, and you’re passionate about native plants, it could be a rewarding project.

The Bottom Line

Oriental trema represents an opportunity to grow a true Pacific native, but it also comes with the challenge of limited growing guidance. It’s perfect for the adventurous gardener who wants to support native plant diversity and doesn’t mind learning through experience. Just remember to source your plants responsibly and be prepared for some experimentation as you figure out what makes this shrub happiest in your particular garden.

If you do decide to try growing Oriental trema, consider keeping notes about its performance in your garden – you might just become one of the few experts on successfully cultivating this understudied native plant!

Oriental Trema

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Hamamelididae

Order

Urticales

Family

Ulmaceae Mirb. - Elm family

Genus

Trema Lour. - trema

Species

Trema orientalis (L.) Blume - Oriental trema

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