Native Plants

Monoa Melicope

Melicope wawraeana

USDA symbol: MEWA4

perennial tree

Hawaii: native

Meet the Monoa melicope (Melicope wawraeana), a stunning Hawaiian native tree that deserves a special place in conservation-minded gardens. This endemic beauty isn’t just another pretty face in the tropical plant world—it’s a rare treasure that plays an important role in Hawaii’s native ecosystems. The Monoa melicope is a perennial ...

Monoa Melicope may be listed as rare in your area.
Global Conservation Status

Status: S2 | Imperiled: Extremely rare. Typically 6 to 20 occurrences or 1,000 to 3,000 remaining individuals.

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

Meet the Monoa melicope (Melicope wawraeana), a stunning Hawaiian native tree that deserves a special place in conservation-minded gardens. This endemic beauty isn’t just another pretty face in the tropical plant world—it’s a rare treasure that plays an important role in Hawaii’s native ecosystems.

What Makes Monoa Melicope Special?

The Monoa melicope is a perennial tree that typically grows as a single-stemmed woody plant, reaching heights of 13 to 16 feet or more under ideal conditions. In some environments, it may develop a shorter, multi-stemmed growth pattern. This adaptable native belongs exclusively to Hawaii, making it a true island endemic that has evolved nowhere else on Earth.

This species is found throughout the Hawaiian islands, where it naturally occurs in both wetland and non-wetland environments thanks to its facultative wetland status. This flexibility makes it an interesting choice for various garden situations.

  • Species observed
  • No observations

A Plant That Needs Our Help

Important Conservation Note: Before we dive into growing tips, there’s something crucial you need to know. The Monoa melicope has a Global Conservation Status of S2, meaning it’s imperiled due to extreme rarity. With typically only 6 to 20 occurrences and between 1,000 to 3,000 remaining individuals, this tree is vulnerable to extinction.

If you’re considering adding this rare beauty to your garden, please only source plants from reputable native plant nurseries that propagate from legally and ethically obtained seeds or cuttings. Never collect from wild populations.

Garden Appeal and Landscape Role

In the right setting, Monoa melicope makes an excellent addition to native Hawaiian gardens and tropical landscapes. Its compound leaves provide lovely textural interest, while its small, delicate flowers—ranging from white to greenish hues—add subtle beauty to the canopy. The tree works well as either a canopy species in larger spaces or as an understory tree in more intimate garden settings.

This native is particularly suited for:

  • Native Hawaiian restoration gardens
  • Tropical shade gardens
  • Conservation landscapes
  • Educational or botanical collections

Growing Conditions and Care

Monoa melicope thrives in USDA hardiness zones 10-12, making it suitable only for tropical and subtropical climates. If you live in Hawaii or similar climate zones, here’s how to keep your tree happy:

Light: Prefers partial shade, mimicking its natural forest habitat

Soil: Well-draining soil is essential, though it can adapt to various soil types

Water: Moderate to high moisture levels work best, but avoid waterlogged conditions

Protection: Shield from strong winds, which can damage the branches and foliage

Planting and Care Tips

When planting your Monoa melicope, choose a location that offers morning sun and afternoon shade. Consistent moisture is key during establishment, but once settled, the tree becomes relatively low-maintenance. Minimal pruning is needed—just remove dead or damaged branches as necessary.

The flowers attract native Hawaiian insects, providing important pollinator benefits and supporting local ecosystem health. This makes your garden not just beautiful, but also ecologically valuable.

Should You Plant Monoa Melicope?

If you’re passionate about conservation and have the right growing conditions, planting a responsibly sourced Monoa melicope can be a meaningful way to support Hawaiian biodiversity. However, given its imperiled status, this isn’t a casual garden choice—it’s a commitment to conservation.

For gardeners who want to support Hawaiian natives but prefer more readily available options, consider asking your local native plant nursery about other Melicope species or Hawaiian natives that aren’t as critically rare.

Remember: every responsibly grown Monoa melicope in cultivation helps preserve this species for future generations. Just make sure yours comes from ethical sources, and you’ll be contributing to the conservation of Hawaii’s unique botanical heritage.

Melicope wawraeana is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Melicope wawraeana is also known as:

Melicope lakae Hartley & | USDA symbol: MELA9
Pelea lakae | USDA symbol: PELA12
Pelea wahiawaensis John & | USDA symbol: PEWA3
Pelea waipioensis | USDA symbol: PEWA6
Pelea wawraeana | USDA symbol: PEWA7
Pelea wawraeana Rock var. pubens | USDA symbol: PEWAP2

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
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 wawraeana (Rock) T.G. Hartley & B.C. Stone - Monoa melicope

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