North America Native Plant

Puerto Rico Box

Botanical name: Buxus portoricensis

USDA symbol: BUPO

Life cycle: perennial

Habit: shrub

Native status: Native to Puerto Rico  

Puerto Rico Box: A Caribbean Native Worth Discovering Meet Puerto Rico box (Buxus portoricensis), a charming evergreen shrub that’s as unique as the beautiful island it calls home. While you might be familiar with common boxwood varieties, this lesser-known cousin brings a touch of Caribbean flair to the world of ...

Puerto Rico Box: A Caribbean Native Worth Discovering

Meet Puerto Rico box (Buxus portoricensis), a charming evergreen shrub that’s as unique as the beautiful island it calls home. While you might be familiar with common boxwood varieties, this lesser-known cousin brings a touch of Caribbean flair to the world of native plants.

What Makes Puerto Rico Box Special?

This perennial shrub is a true Puerto Rican original – it’s endemic to the island, meaning you won’t find it growing wild anywhere else in the world. Like other members of the boxwood family, Puerto Rico box is a multi-stemmed woody plant that typically stays under 13 to 16 feet tall, though it usually grows much smaller in garden settings.

Where Does It Grow?

Puerto Rico box is exclusively native to Puerto Rico, where it has adapted to the island’s unique tropical climate and growing conditions. This makes it a perfect choice for gardeners in Puerto Rico who want to celebrate their local flora.

Why Consider Growing Puerto Rico Box?

If you’re gardening in Puerto Rico or other tropical locations, here are some compelling reasons to give this native a try:

  • True native status: Supporting endemic species helps preserve Puerto Rico’s unique botanical heritage
  • Evergreen appeal: Provides year-round structure and greenery to your landscape
  • Manageable size: Perfect for smaller gardens or as part of mixed native plantings
  • Low-maintenance potential: Being native means it’s naturally adapted to local conditions

Growing Conditions and Care

While specific cultivation information for Puerto Rico box is limited (it’s not commonly available in the nursery trade), we can make educated guesses based on its native habitat and relationship to other boxwoods:

  • Climate: Best suited for USDA hardiness zones 10-11 (tropical and subtropical regions)
  • Light: Likely tolerates both full sun and partial shade
  • Soil: Probably prefers well-draining soil, as most boxwoods do
  • Water: Regular watering during establishment, then moderate water needs

The Challenge of Finding It

Here’s the honest truth: Puerto Rico box isn’t easy to find in cultivation. As an endemic species that’s not widely grown commercially, you’ll need to do some detective work to locate it. Your best bet is to:

  • Contact local botanical gardens in Puerto Rico
  • Reach out to native plant societies
  • Connect with conservation organizations focused on Puerto Rican flora
  • Look for specialty nurseries that focus on Caribbean native plants

A Plant Worth Preserving

While Puerto Rico box might not be the easiest plant to find or grow, it represents something precious – a piece of Puerto Rico’s natural heritage. If you’re lucky enough to encounter this species, consider yourself privileged to witness a true island original.

For gardeners outside of Puerto Rico’s tropical climate, this plant serves as a fascinating reminder of the incredible diversity found in island ecosystems. And who knows? As interest in native plants continues to grow, we might see more of these Caribbean treasures making their way into specialized collections.

Sometimes the most rewarding plants aren’t the ones you can pick up at any garden center – they’re the ones that connect us to the unique natural heritage of special places like Puerto Rico.

Puerto Rico Box

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

Euphorbiales

Family

Buxaceae Dumort. - Boxwood family

Genus

Buxus L. - boxwood

Species

Buxus portoricensis Alain - Puerto Rico box

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