North America Native Plant

Kauai Labordia

Botanical name: Labordia pumila

USDA symbol: LAPU4

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Kauai Labordia: A Precious Hawaiian Native in Need of Our Help If you’re passionate about Hawaiian native plants and conservation gardening, you’ve probably heard whispers about some of the rarest gems in the island chain. Meet the Kauai labordia (Labordia pumila), a small but mighty shrub that’s fighting for survival ...

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

Kauai Labordia: A Precious Hawaiian Native in Need of Our Help

If you’re passionate about Hawaiian native plants and conservation gardening, you’ve probably heard whispers about some of the rarest gems in the island chain. Meet the Kauai labordia (Labordia pumila), a small but mighty shrub that’s fighting for survival on the Garden Isle. This isn’t your typical garden center find – it’s one of Hawaii’s most endangered plants, and there’s a compelling story behind why gardeners should care about its fate.

What Makes Kauai Labordia Special?

Labordia pumila is a perennial shrub that’s endemic exclusively to Kauai, meaning you won’t find it growing naturally anywhere else on Earth. This multi-stemmed woody plant typically stays compact, usually growing less than 13 to 16 feet tall, though it can vary depending on environmental conditions. What makes it particularly striking are its small, delicate white tubular flowers and glossy green foliage that seems to shimmer in the filtered light of Hawaii’s wet forests.

Where Does It Call Home?

This rare beauty is found only in Hawaii, specifically in the wet forests and boggy areas of Kauai. It thrives in the island’s unique ecosystem where constant moisture, high humidity, and filtered sunlight create the perfect conditions for this specialized plant.

A Plant in Crisis: Understanding Its Endangered Status

Here’s where things get serious, fellow plant lovers. Kauai labordia has a Global Conservation Status of S1, which translates to Critically Imperiled. In plain terms, this means there are typically fewer than 1,000 individuals left in the wild, and possibly only 5 or fewer populations remaining. It’s also federally listed as Endangered, making it one of Hawaii’s most at-risk native plants.

Important note for gardeners: If you’re considering growing this plant, it’s crucial to source it only from reputable native plant nurseries or conservation programs that propagate from legally collected seeds or cuttings. Never attempt to collect from wild populations – every single plant in the wild is precious for the species’ survival.

Growing Conditions: Not Your Average Garden Plant

Kauai labordia isn’t going to thrive in a typical mainland garden, and even in Hawaii, it has very specific needs. This plant is classified as a facultative wetland species, meaning it usually grows in wetlands but can occasionally be found in non-wetland areas. Here’s what it craves:

  • Consistently moist to wet soil conditions
  • High humidity (think tropical bog levels)
  • Partial shade to filtered sunlight
  • USDA hardiness zones 10-11 only
  • Protection from strong winds and direct sun

Is This Plant Right for Your Garden?

Let’s be honest – Kauai labordia is not for the casual gardener. This is a plant for serious conservation enthusiasts, botanical gardens, or specialized native Hawaiian plant collections. If you live in Hawaii and have the right conditions (think wet, boggy areas with high humidity), you might be able to provide a suitable home for this rare beauty.

The ideal setting would be:

  • A dedicated native Hawaiian plant garden
  • Conservation or restoration plantings
  • Bog gardens or wetland areas
  • Educational gardens focused on endangered species

Benefits Beyond Beauty

While we don’t have extensive data on all its wildlife interactions, Kauai labordia likely plays an important role in supporting native Hawaiian pollinators and insects. Every native plant species is a piece of Hawaii’s ecological puzzle, and preserving plants like this helps maintain the intricate web of relationships that make Hawaiian ecosystems unique.

The Bottom Line

Should you plant Kauai labordia? If you’re in Hawaii, have the specialized growing conditions it needs, and can source it responsibly from conservation programs, then absolutely yes! Every plant grown in cultivation is a small victory for conservation. However, if you’re looking for an easier native Hawaiian plant to start with, consider asking local native plant societies about other endangered species that might be more suitable for beginning conservation gardeners.

Remember, growing rare plants like Kauai labordia isn’t just gardening – it’s participating in conservation. You’re helping ensure that future generations will be able to experience the incredible diversity of Hawaii’s native flora. And honestly, there’s something pretty magical about having one of the world’s rarest plants thriving in your garden, don’t you think?

Kauai Labordia

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

Gentianales

Family

Loganiaceae R. Br. ex Mart. - Logania family

Genus

Labordia Gaudich. - labordia

Species

Labordia pumila (Hillebr.) Skottsb. - Kauai labordia

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