North America Native Plant

Maui Clermontia

Botanical name: Clermontia micrantha

USDA symbol: CLMI3

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Maui Clermontia: A Rare Hawaiian Treasure Worth Protecting If you’re passionate about Hawaiian native plants and conservation gardening, you’ve probably never heard of Maui clermontia (Clermontia micrantha). Don’t worry – you’re not alone! This little-known shrub is one of Hawaii’s best-kept botanical secrets, and there’s a very good reason why ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Maui Clermontia: A Rare Hawaiian Treasure Worth Protecting

If you’re passionate about Hawaiian native plants and conservation gardening, you’ve probably never heard of Maui clermontia (Clermontia micrantha). Don’t worry – you’re not alone! This little-known shrub is one of Hawaii’s best-kept botanical secrets, and there’s a very good reason why it flies under the radar.

What Makes Maui Clermontia Special?

Maui clermontia is a perennial shrub that’s as Hawaiian as it gets – this beauty is found nowhere else on Earth except in the Hawaiian Islands. As its common name suggests, it calls Hawaii home, specifically thriving in the unique ecosystems of the Aloha State.

This multi-stemmed woody plant typically stays under 13-16 feet tall, making it a manageable size for most garden settings. Like other shrubs, it usually develops several stems from near the ground, creating a naturally full, bushy appearance that adds structure to any landscape.

The Conservation Reality Check

Here’s where things get serious, fellow gardeners. Maui clermontia has a Global Conservation Status of S3, which translates to Vulnerable. This means our green friend is either very rare throughout its range or faces other factors that make it vulnerable to disappearing entirely. We’re talking about only 21 to 100 known occurrences or between 3,000 and 10,000 individual plants – that’s not many!

If you’re considering adding this rare gem to your garden, please – and we can’t stress this enough – only source it responsibly. This means working with reputable native plant nurseries that propagate their stock ethically, never collecting from wild populations.

Growing Conditions and Care

Maui clermontia has some specific preferences that reflect its Hawaiian heritage. This plant is classified as a Facultative Wetland species in Hawaii, which means:

  • It usually prefers wetland conditions but can adapt to drier sites
  • Consistent moisture is generally preferred
  • It’s naturally adapted to Hawaii’s tropical climate patterns

Given its Hawaiian native status, Maui clermontia thrives in USDA hardiness zones 10-12 – essentially tropical and subtropical climates. If you live outside these zones, you’d need to grow it as a container plant that can be protected during cooler months.

Is Maui Clermontia Right for Your Garden?

This shrub is perfect for:

  • Native Hawaiian plant enthusiasts
  • Conservation-minded gardeners
  • Those creating authentic Polynesian landscapes
  • Gardeners with consistently moist growing conditions
  • Anyone passionate about preserving rare plant species

However, it might not be the best choice if you’re looking for a low-maintenance, widely available plant or if you live in a climate that can’t support tropical species year-round.

The Bottom Line

Maui clermontia represents something precious in our plant world – a living piece of Hawaiian natural heritage that needs our protection. While we don’t have extensive information about its specific care requirements or ornamental qualities, its rarity alone makes it a plant worth preserving and celebrating.

If you’re drawn to this unique shrub, approach it with the respect it deserves. Work only with ethical sources, learn about Hawaiian conservation efforts, and consider yourself a guardian of a truly special species. Sometimes the most rewarding plants to grow are the ones that connect us to something bigger than our own backyard – they connect us to the wild places and ecosystems that still need our help.

Remember, every garden can be a small sanctuary. By choosing plants like Maui clermontia responsibly, you’re not just adding to your landscape – you’re participating in conservation, one plant at a time.

Maui Clermontia

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

Campanulales

Family

Campanulaceae Juss. - Bellflower family

Genus

Clermontia Gaudich. - clermontia

Species

Clermontia micrantha (Hillebr.) Rock - Maui clermontia

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