North America Native Plant

Waianae Range Wild Coffee

Botanical name: Psychotria hathewayi

USDA symbol: PSHA2

Life cycle: perennial

Habit: tree

Native status: Native to Hawaii  

Waianae Range Wild Coffee: A Rare Hawaiian Treasure Worth Protecting If you’re passionate about Hawaiian native plants and conservation gardening, you’ve probably heard whispers about the elusive Waianae Range wild coffee. This remarkable tree, scientifically known as Psychotria hathewayi, is one of Hawaii’s most endangered native species – and for ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Waianae Range Wild Coffee: A Rare Hawaiian Treasure Worth Protecting

If you’re passionate about Hawaiian native plants and conservation gardening, you’ve probably heard whispers about the elusive Waianae Range wild coffee. This remarkable tree, scientifically known as Psychotria hathewayi, is one of Hawaii’s most endangered native species – and for good reason. Let’s dive into what makes this plant so special and why responsible gardeners should consider adding it to their collections.

What Makes This Plant Special?

The Waianae Range wild coffee is a perennial tree that belongs to the coffee family, though it’s quite different from the coffee you brew each morning. This woody beauty typically grows as a single-stemmed tree reaching 13 to 16 feet in height, though environmental conditions can sometimes result in a shorter, multi-stemmed growth form.

What really sets this plant apart is its stunning aesthetic appeal. Picture glossy, dark green leaves that catch the light beautifully, complemented by clusters of small, fragrant white flowers that eventually give way to bright red berries. It’s like having a piece of Hawaii’s pristine mountain forests right in your garden.

Where Does It Come From?

This incredible tree is endemic to Hawaii, specifically found only in the Waianae Mountains of Oahu. That’s right – you won’t find this species growing naturally anywhere else on Earth! It’s exclusively a Hawaiian treasure, making it incredibly special for native plant enthusiasts and conservation-minded gardeners.

A Word of Caution: This Plant Needs Our Help

Important Conservation Alert: The Waianae Range wild coffee has a Global Conservation Status of S2, meaning it’s imperiled due to extreme rarity. With only 6 to 20 known occurrences and an estimated 1,000 to 3,000 remaining individuals in the wild, this species is teetering on the edge of extinction.

If you’re considering adding this plant to your garden, please ensure you source it responsibly from reputable native plant nurseries or conservation programs. Never collect plants from the wild – every individual in nature is precious for the species’ survival.

Growing Conditions and Care

The good news is that Waianae Range wild coffee can adapt to various garden settings when given proper care. Here’s what you need to know:

  • USDA Hardiness Zones: 10-12 (tropical climates only)
  • Light Requirements: Partial shade to full sun
  • Soil Needs: Well-draining soil with good organic content
  • Water Requirements: Moderate, consistent moisture
  • Wetland Status: Facultative Upland (usually prefers non-wetland conditions but can tolerate some moisture)

Perfect Garden Roles

This versatile tree works beautifully in several landscape applications:

  • Specimen tree for Hawaiian native gardens
  • Understory plantings in tropical landscapes
  • Conservation gardens focused on rare species
  • Educational gardens highlighting Hawaiian biodiversity

Planting and Care Tips

Successfully growing Waianae Range wild coffee requires attention to detail, but it’s absolutely doable:

  • Plant in well-draining soil enriched with organic matter
  • Provide consistent moisture without waterlogging
  • Protect from strong winds, especially when young
  • Apply organic mulch to retain moisture and suppress weeds
  • Be patient – like many native Hawaiian plants, it may establish slowly

Wildlife and Pollinator Benefits

While specific wildlife benefits aren’t well-documented due to its rarity, the flowers of Waianae Range wild coffee likely attract native Hawaiian insects and pollinators. The bright red berries may also provide food for native birds, contributing to the local ecosystem’s health.

Should You Plant It?

If you live in a tropical climate (zones 10-12) and are committed to conservation gardening, growing Waianae Range wild coffee can be incredibly rewarding. You’ll be participating in the preservation of one of Hawaii’s rarest native species while enjoying a truly unique and beautiful tree.

However, this plant isn’t for casual gardeners. Its endangered status means it requires responsible sourcing and dedicated care. If you’re up for the challenge and can obtain plants through proper conservation channels, you’ll be making a meaningful contribution to preserving Hawaiian biodiversity.

Remember: every tree planted is a step toward saving this remarkable species from extinction. That’s pretty powerful stuff for any garden!

Waianae Range Wild Coffee

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

Rubiales

Family

Rubiaceae Juss. - Madder family

Genus

Psychotria L. - wild coffee

Species

Psychotria hathewayi Fosberg - Waianae Range wild coffee

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