Native Plants

Caroline Ground Orchid

Spathoglottis carolinensis

USDA symbol: SPCA19

perennial forb

Pacific Basin excluding Hawaii: native

Meet the Caroline ground orchid (Spathoglottis carolinensis), a fascinating native orchid that calls the tropical Pacific islands home. If you’re dreaming of adding an exotic touch to your garden, this lesser-known beauty might catch your eye – though it comes with some unique challenges that make it quite different from ...

Caroline Ground Orchid: A Rare Pacific Gem for Specialized Gardens

Meet the Caroline ground orchid (Spathoglottis carolinensis), a fascinating native orchid that calls the tropical Pacific islands home. If you’re dreaming of adding an exotic touch to your garden, this lesser-known beauty might catch your eye – though it comes with some unique challenges that make it quite different from your typical garden center finds.

What Makes This Orchid Special?

The Caroline ground orchid is a perennial terrestrial orchid, which means it grows in soil rather than perching on trees like many of its tropical cousins. As a forb, it’s an herbaceous plant without woody stems, sending up its growth from underground structures each growing season. In Palau, locals know it as liselabeab, highlighting its cultural significance in Pacific island communities.

Where Does It Call Home?

This orchid is native to the Pacific Basin (excluding Hawaii) and naturally occurs in Guam and Palau. It’s perfectly adapted to the tropical island conditions of these regions, which gives us clues about what it might need in cultivation.

  • Species observed
  • No observations

Should You Grow Caroline Ground Orchid?

Here’s where things get interesting – and a bit challenging. While this native orchid sounds appealing, there’s limited information available about its specific growing requirements, availability, and garden performance. This rarity in cultivation information suggests a few important considerations:

  • It may be difficult to source from reputable nurseries
  • Growing requirements are not well-documented for home gardeners
  • Success rates in cultivation outside its native range are unknown
  • It may require very specific tropical conditions that are hard to replicate

Growing Conditions and Care

Based on its native habitat in tropical Pacific islands, the Caroline ground orchid would likely prefer:

  • Warm, humid conditions year-round
  • Well-draining but moisture-retentive soil
  • Filtered light or partial shade
  • Protection from strong winds
  • Consistent temperatures without dramatic fluctuations

However, specific soil pH preferences, fertilizer needs, and detailed care instructions remain unclear due to limited cultivation research.

The Bottom Line

While the Caroline ground orchid represents an intriguing piece of Pacific island flora, its limited availability and lack of established growing guidelines make it a challenging choice for most gardeners. If you’re in a tropical climate similar to Guam or Palau and can source this orchid responsibly, it could be a unique addition to a specialized native plant collection.

For most gardeners interested in ground orchids, consider exploring more readily available terrestrial orchids that are better suited to cultivation, such as hardy native orchids appropriate for your specific region. Your local native plant society can help guide you toward orchid species that are both available and suitable for your climate and gardening experience level.

A Word About Conservation

Given the limited range and specialized habitat of the Caroline ground orchid, it’s especially important to source any plants through reputable, conservation-minded suppliers who can verify the plants weren’t collected from wild populations. Supporting responsible cultivation helps protect these unique Pacific island treasures for future generations to appreciate.

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Liliidae
Order: Orchidales
Family: Orchidaceae Juss. - Orchid family
Genus: Spathoglottis Blume - ground orchid

Species: Spathoglottis carolinensis Schltr. - Caroline ground orchid

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