North America Native Plant

Colombian Bonnet Orchid

Botanical name: Trichosalpinx dura

USDA symbol: TRDU5

Life cycle: perennial

Habit: forb

Native status: Native to Puerto Rico  

Synonyms: Pleurothallis foliata Griseb. (PLFO3)   

Colombian Bonnet Orchid: A Tiny Treasure from Puerto Rico Meet the Colombian bonnet orchid (Trichosalpinx dura), a petite native gem that calls Puerto Rico home. Despite its common name suggesting Colombian origins, this delicate orchid is actually a true Puerto Rican native, adding to the island’s incredible botanical diversity. If ...

Colombian Bonnet Orchid: A Tiny Treasure from Puerto Rico

Meet the Colombian bonnet orchid (Trichosalpinx dura), a petite native gem that calls Puerto Rico home. Despite its common name suggesting Colombian origins, this delicate orchid is actually a true Puerto Rican native, adding to the island’s incredible botanical diversity. If you’re an orchid enthusiast looking for something truly special, this little beauty might just capture your heart – though it comes with some growing challenges that are worth understanding upfront.

What Makes This Orchid Special

The Colombian bonnet orchid belongs to a fascinating group of miniature orchids that have mastered the art of epiphytic living. As a perennial forb, it’s a herbaceous plant without woody stems, but don’t let that fool you into thinking it’s fragile. This orchid has evolved to thrive in the humid, filtered-light conditions of its native Caribbean environment.

Botanically speaking, you might also encounter this orchid listed under its synonym, Pleurothallis foliata Griseb., in older references or specialized orchid literature.

Where You’ll Find It in Nature

This orchid is native to Puerto Rico, where it grows as an epiphyte in the island’s tropical forests. Its natural habitat gives us important clues about what it needs to thrive in cultivation.

Is This Orchid Right for Your Garden?

Here’s where we need to have an honest conversation about growing the Colombian bonnet orchid. This isn’t your typical garden center orchid, and it’s definitely not a plant for beginners or those looking for low-maintenance options.

Consider this orchid if you:

  • Are an experienced orchid grower
  • Have a greenhouse or can provide controlled tropical conditions
  • Live in USDA hardiness zones 10-11
  • Enjoy collecting rare and unusual orchid species
  • Can maintain consistent high humidity (60-80%)

This might not be the orchid for you if:

  • You’re new to orchid growing
  • You live in a climate with cold winters
  • You prefer plants that are forgiving of irregular care
  • You don’t have the ability to provide specialized growing conditions

Growing Conditions and Care

If you’re up for the challenge, here’s what your Colombian bonnet orchid will need to thrive:

Light: Bright, filtered light – think dappled forest canopy, not direct sun. East-facing windows or shaded greenhouse benches work well.

Humidity: High humidity is absolutely crucial. Aim for 60-80% relative humidity, which usually requires a humidifier or greenhouse environment.

Temperature: Warm temperatures year-round, ideally between 65-85°F (18-29°C). This orchid cannot tolerate frost or prolonged cool periods.

Growing Medium: As an epiphyte, it needs excellent drainage and air circulation around its roots. Mount it on tree fern fiber, cork bark, or grow it in a very chunky orchid bark mix.

Watering: Keep consistently moist but never soggy. Daily misting in dry climates, with thorough watering 2-3 times per week depending on conditions.

The Reality Check

Let’s be honest – the Colombian bonnet orchid is more of a collector’s plant than a typical garden addition. Its specific requirements mean it’s best suited for serious orchid enthusiasts who can provide greenhouse conditions or those lucky enough to live in consistently warm, humid climates.

If you’re drawn to native Puerto Rican plants but want something more manageable, consider exploring other native options that might be better suited to your growing conditions and experience level.

Conservation Considerations

As with any native orchid, if you do decide to grow Trichosalpinx dura, make sure you’re sourcing it responsibly from reputable orchid suppliers who propagate their plants rather than collecting from wild populations. Supporting ethical orchid cultivation helps protect wild populations for future generations.

The Colombian bonnet orchid represents the incredible diversity of Puerto Rico’s native flora. While it may not be the easiest plant to grow, for the right gardener with the right conditions, it offers a unique connection to the rich botanical heritage of the Caribbean.

Colombian Bonnet Orchid

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Orchidales

Family

Orchidaceae Juss. - Orchid family

Genus

Trichosalpinx Luer - bonnet orchid

Species

Trichosalpinx dura (Lindl.) Luer - Colombian bonnet orchid

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