North America Native Plant

Plateado

Botanical name: Exostema ellipticum

USDA symbol: EXEL

Life cycle: perennial

Habit: shrub

Native status: Native to Puerto Rico  

Plateado: A Hidden Gem for Your Puerto Rican Native Garden If you’re looking to add authentic Caribbean flair to your tropical garden, meet plateado (Exostema ellipticum) – a charming native shrub that’s been quietly beautifying Puerto Rico’s landscapes long before gardens were even a thing. This unsung hero of the ...

Plateado: A Hidden Gem for Your Puerto Rican Native Garden

If you’re looking to add authentic Caribbean flair to your tropical garden, meet plateado (Exostema ellipticum) – a charming native shrub that’s been quietly beautifying Puerto Rico’s landscapes long before gardens were even a thing. This unsung hero of the plant world deserves a spot in your native plant collection, especially if you’re passionate about supporting local ecosystems.

What Makes Plateado Special?

Plateado is a perennial shrub that’s as authentic as it gets – it’s completely native to Puerto Rico. This multi-stemmed woody beauty typically grows to a manageable height of 13-16 feet, though it can stay smaller depending on your growing conditions. Think of it as nature’s way of giving you a perfectly sized shrub that won’t overwhelm your space but still makes a statement.

Where Does Plateado Call Home?

This plant is a true Puerto Rican native, found naturally throughout the island. It’s one of those special plants that evolved specifically in Caribbean conditions, making it perfectly adapted to local climate challenges that might stump other species.

Why Your Garden Will Thank You

Choosing plateado for your landscape is like hiring a local expert – it already knows the territory. As a member of the coffee family (Rubiaceae), it likely produces attractive small flowers that can add subtle beauty to your garden while supporting local pollinators who have co-evolved with this species over thousands of years.

Perfect Garden Partnerships

Plateado shines brightest in:

  • Native plant gardens focused on Caribbean species
  • Wildlife-friendly landscapes
  • Mixed shrub borders with other native plants
  • Naturalized areas where you want low-maintenance beauty

Growing Your Plateado Successfully

The beauty of growing a true native is that you’re working with nature, not against it. While specific growing requirements for plateado aren’t extensively documented, you can follow these tropical native plant guidelines:

Climate Considerations

Plateado thrives in tropical conditions (USDA zones 10-12), making it perfect for Puerto Rico and similar Caribbean climates. If you’re gardening elsewhere, this beauty is probably better admired from afar unless you have a greenhouse.

Planting Tips

  • Choose a location with well-draining soil – most Caribbean natives don’t appreciate soggy feet
  • Provide some protection from the harshest midday sun if possible
  • Give it space to develop its natural multi-stemmed form
  • Plant during the rainy season for the best establishment

Ongoing Care

Native plants are generally low-maintenance once established, and plateado should be no exception. Regular watering during dry spells and occasional pruning to maintain shape should keep your shrub happy and healthy.

The Bottom Line

Plateado represents something special – a chance to grow a plant that’s authentically Puerto Rican and perfectly suited to local conditions. While it might not be the showiest plant in the nursery, it offers the quiet satisfaction of knowing you’re supporting local biodiversity and growing something truly unique to your region.

If you can find plateado at local native plant sales or specialty nurseries, consider giving this understated beauty a try. Your local pollinators – and Puerto Rico’s natural heritage – will thank you for it.

Plateado

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Rubiales

Family

Rubiaceae Juss. - Madder family

Genus

Exostema (Pers.) Rich. ex Humb. & Bonpl. - exostema

Species

Exostema ellipticum Griseb. - plateado

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