North America Native Plant

El Yunque Colorado

Botanical name: Ternstroemia subsessilis

USDA symbol: TESU

Life cycle: perennial

Habit: shrub

Native status: Native to Puerto Rico  

Synonyms: Taonabo subsessilis Britton (TASU)   

El Yunque Colorado: A Rare Gem Worth Protecting in Your Puerto Rican Garden If you’re gardening in Puerto Rico and looking for a native shrub that’s both beautiful and ecologically important, let me introduce you to el yunque colorado (Ternstroemia subsessilis). This remarkable little shrub is more than just a ...

Rare plant alert!

Region: United States

Status: S1: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

El Yunque Colorado: A Rare Gem Worth Protecting in Your Puerto Rican Garden

If you’re gardening in Puerto Rico and looking for a native shrub that’s both beautiful and ecologically important, let me introduce you to el yunque colorado (Ternstroemia subsessilis). This remarkable little shrub is more than just a pretty face – it’s a critically endangered species that deserves our attention and conservation efforts.

What Makes El Yunque Colorado Special?

El yunque colorado is a perennial shrub that’s endemic to Puerto Rico, meaning you won’t find it growing naturally anywhere else in the world. This multi-stemmed woody plant typically grows to about 13-16 feet tall, though it can vary depending on growing conditions. Its glossy evergreen leaves and delicate white to cream-colored flowers make it an attractive addition to any shade garden.

Where Does It Call Home?

This special shrub is native exclusively to Puerto Rico, where it grows naturally in the lush forests of the region. Unfortunately, its distribution is quite limited, which contributes to its endangered status.

A Plant in Peril: Understanding Its Endangered Status

Here’s where things get serious, folks. El yunque colorado has a Global Conservation Status of S1, which means it’s critically imperiled. With typically five or fewer occurrences and very few remaining individuals (less than 1,000), this plant is hanging on by a thread. In the United States, it’s officially listed as Endangered.

What this means for gardeners: If you’re considering adding this plant to your garden, you absolutely should – but only if you can source it responsibly. Never collect plants from the wild, and always purchase from reputable nurseries that propagate their plants ethically.

Garden Design and Landscaping Uses

El yunque colorado shines as an understory shrub in shade gardens and naturalistic plantings. Its compact form and evergreen foliage make it perfect for:

  • Tropical shade gardens
  • Conservation-focused landscapes
  • Native plant gardens
  • Understory plantings beneath larger trees

The plant has a facultative wetland status, meaning it can adapt to both wet and dry conditions, making it quite versatile in the landscape.

Growing Conditions and Care

If you’re lucky enough to get your hands on responsibly sourced el yunque colorado, here’s how to keep it happy:

  • Light: Partial to full shade (it’s an understory plant, after all!)
  • Soil: Moist, well-draining, acidic soils
  • Humidity: High humidity levels (perfect for Puerto Rico’s climate)
  • Hardiness: USDA zones 10-11
  • Water: Consistent moisture without waterlogging

Planting and Care Tips

Caring for el yunque colorado isn’t too tricky once you understand its needs:

  • Plant in a protected location away from strong winds
  • Maintain consistent soil moisture
  • Mulch around the base to retain moisture and suppress weeds
  • Minimal pruning required – just remove dead or damaged branches
  • Monitor for any signs of stress, as this rare plant needs extra attention

Wildlife and Pollinator Benefits

While specific wildlife benefits aren’t well-documented, the small flowers of el yunque colorado likely attract native pollinators such as bees and butterflies. By growing this plant, you’re not just adding beauty to your garden – you’re providing habitat for local wildlife and helping preserve a piece of Puerto Rico’s natural heritage.

The Bottom Line

El yunque colorado is a plant that tugs at the heartstrings of any conservation-minded gardener. Its rarity makes it both precious and challenging to obtain, but that’s exactly why it’s worth the effort. If you can source this plant responsibly, you’ll be participating in an important conservation effort while adding a unique, native beauty to your Puerto Rican garden.

Remember, every plant we grow helps preserve genetic diversity and potentially contributes to future conservation efforts. Just make sure you’re part of the solution by choosing responsibly sourced plants and never collecting from wild populations.

El Yunque Colorado

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Theales

Family

Theaceae Mirb. - Tea family

Genus

Ternstroemia Mutis ex L. f. - ternstroemia

Species

Ternstroemia subsessilis (Britton) Kobuski - el yunque colorado

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