North America Native Plant

Kauai Melicope

Botanical name: Melicope kavaiensis

USDA symbol: MEKA3

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Synonyms: Melicope lohiauana (B.C. Stone) T.G. Hartley & B.C. Stone (MELO7)  âš˜  Pelea kavaiensis H. Mann (PEKA5)  âš˜  Pelea lohiauana B.C. Stone (PELO4)  âš˜  Pelea pluvialis H. St. John (PEPL3)  âš˜  Pelea recurvata Rock (PERE5)   

Kauai Melicope: A Rare Hawaiian Native Worth Protecting in Your Garden If you’re passionate about Hawaiian native plants and want to make a real conservation impact in your garden, meet the Kauai melicope (Melicope kavaiensis). This enchanting shrub might not be the showiest plant on the block, but it’s got ...

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 ⚘

Kauai Melicope: A Rare Hawaiian Native Worth Protecting in Your Garden

If you’re passionate about Hawaiian native plants and want to make a real conservation impact in your garden, meet the Kauai melicope (Melicope kavaiensis). This enchanting shrub might not be the showiest plant on the block, but it’s got something far more valuable: it’s a rare piece of Hawaii’s natural heritage that desperately needs our help.

What Makes Kauai Melicope Special?

The Kauai melicope is a perennial shrub that’s endemic to the beautiful island of Kauai. As a multi-stemmed woody plant, it typically grows to a manageable height of 4-5 meters (13-16 feet), making it perfect for home landscapes. What sets this plant apart isn’t just its Hawaiian origins—it’s the fact that it’s fighting for survival.

With a conservation status of S3 (Vulnerable), there are only an estimated 21-100 populations remaining, representing roughly 3,000-10,000 individual plants. That might sound like a lot, but for a species that once thrived across Kauai’s mountainous regions, these numbers are concerning.

Where Does Kauai Melicope Grow?

This native Hawaiian shrub is found exclusively in Hawaii, specifically on the island of Kauai. In the wild, you’ll find it tucked into the island’s lush mountainous areas, where it has adapted to the unique climate and soil conditions of its island home.

Why Consider Planting Kauai Melicope?

Here’s where things get exciting for conservation-minded gardeners:

  • Conservation hero: By growing this rare native, you’re actively participating in species preservation
  • Authentic Hawaiian landscaping: Perfect for creating genuine native Hawaiian garden spaces
  • Pollinator support: Provides nectar and habitat for native Hawaiian insects and birds
  • Erosion control: Its root system helps stabilize soil, especially on slopes
  • Low maintenance: Once established, it’s well-adapted to local conditions

The Important Caveat: Source Responsibly

Before you get too excited, here’s the crucial part: if you decide to plant Kauai melicope, you must source it responsibly. Never collect from wild populations—this could harm the remaining plants. Instead, work with reputable native plant nurseries or conservation organizations that propagate plants from ethically sourced seeds or cuttings.

Growing Conditions and Care

Kauai melicope has some specific preferences that reflect its natural habitat:

  • USDA Zones: 10-11 (tropical climates only)
  • Light: Partial shade to full shade—it’s naturally an understory plant
  • Moisture: Consistent moisture is key; it has facultative wetland status, meaning it usually grows in wet areas but can tolerate some drying
  • Soil: Well-draining but moisture-retentive soil
  • Wind protection: Shield from strong winds, especially trade winds

Perfect Garden Settings

This versatile shrub works beautifully in several landscape scenarios:

  • Native Hawaiian gardens: The obvious choice for authentic island landscaping
  • Shade gardens: Excellent understory plant beneath larger natives
  • Conservation gardens: Perfect for educational or demonstration landscapes
  • Erosion-prone slopes: Helps stabilize soil naturally

Supporting Hawaiian Wildlife

While we don’t have extensive data on specific wildlife benefits, Hawaiian native plants like Kauai melicope typically support native insects, which in turn feed native birds. By planting natives, you’re supporting the entire ecosystem web that has evolved over thousands of years.

The Bottom Line

Kauai melicope isn’t for every gardener—it requires tropical conditions and thoughtful sourcing. But if you’re in Hawaii or another tropical zone and want to make a meaningful conservation contribution, this rare native deserves serious consideration. Just remember: with great rarity comes great responsibility. Source ethically, plant thoughtfully, and you’ll be helping preserve a piece of Hawaii’s natural heritage for future generations.

Sometimes the most rewarding plants aren’t the flashiest ones—they’re the ones that connect us to place and purpose. Kauai melicope does exactly that.

Kauai Melicope

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Sapindales

Family

Rutaceae Juss. - Rue family

Genus

Melicope (J.R. Forst. & G. Forst.) T.G. Hartley & B.C. Stone - melicope

Species

Melicope kavaiensis (H. Mann) T.G. Hartley & B.C. Stone - Kauai melicope

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