North America Native Plant

Waianae Range Starviolet

Botanical name: Hedyotis degeneri

USDA symbol: HEDE3

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Waianae Range Starviolet: A Rare Hawaiian Treasure for Conservation-Minded Gardeners If you’re passionate about native Hawaiian plants and conservation gardening, the Waianae Range starviolet might just capture your heart. This rare gem, scientifically known as Hedyotis degeneri, is one of Hawaii’s most precious botanical treasures—and one that desperately needs our ...

Rare plant alert!

Region: Conservation status by state

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) ⚘

Waianae Range Starviolet: A Rare Hawaiian Treasure for Conservation-Minded Gardeners

If you’re passionate about native Hawaiian plants and conservation gardening, the Waianae Range starviolet might just capture your heart. This rare gem, scientifically known as Hedyotis degeneri, is one of Hawaii’s most precious botanical treasures—and one that desperately needs our help to survive.

What Makes This Plant Special?

The Waianae Range starviolet is a perennial shrub that’s as charming as it is rare. Picture a compact, multi-stemmed woody plant that typically stays under 13-16 feet tall, adorned with delicate white star-shaped flowers. It’s like having a piece of ancient Hawaii right in your garden—if you’re lucky enough to find one!

Where Does It Come From?

This little beauty is endemic to Hawaii, specifically calling the Waianae Mountains of Oahu home. It’s found nowhere else on Earth, making it a true Hawaiian original that has evolved over thousands of years in this unique island ecosystem.

The Reality Check: This Plant Is Critically Rare

Here’s where things get serious. The Waianae Range starviolet has a Global Conservation Status of S1, which means it’s critically imperiled. We’re talking about typically five or fewer occurrences in the wild, with very few remaining individuals—likely fewer than 1,000 plants total. This isn’t just rare; it’s teetering on the edge of extinction.

What this means for gardeners: If you’re considering growing this plant, you absolutely must ensure you’re getting it from a responsible, conservation-focused source. Never collect from the wild, and only work with reputable native plant nurseries or conservation programs.

Growing Conditions and Care

If you’re fortunate enough to obtain a Waianae Range starviolet through proper conservation channels, here’s what it needs to thrive:

  • Climate: USDA hardiness zones 10-12 (tropical conditions)
  • Soil: Well-draining volcanic soils; excellent drainage is absolutely critical
  • Light: Partial shade to full sun
  • Water: Drought-tolerant once established, but benefits from occasional deep watering
  • Space: Allow room for a multi-stemmed shrub that can reach 13-16 feet in ideal conditions

Garden Design and Landscape Role

This plant shines brightest in:

  • Native Hawaiian gardens dedicated to indigenous species
  • Conservation gardens focused on rare and endangered plants
  • Xerophytic landscapes that celebrate drought-adapted plants
  • Educational gardens that tell the story of Hawaiian biodiversity

The Waianae Range starviolet works beautifully as a specimen plant where its conservation story can be shared with visitors. It’s not just a pretty face—it’s a living piece of Hawaiian natural heritage.

Benefits to Wildlife and Pollinators

As a native Hawaiian plant, the Waianae Range starviolet has co-evolved with local pollinators and likely provides important resources for native insects and birds. By growing this plant, you’re supporting the broader ecosystem of endemic Hawaiian species.

Should You Grow It?

The answer is both yes and no. Yes, if you’re deeply committed to conservation, have the right growing conditions, and can source the plant responsibly through conservation programs or specialized native plant nurseries. No, if you’re looking for an easy-to-find garden plant or aren’t prepared for the responsibility that comes with growing a critically endangered species.

This isn’t a plant for casual gardeners—it’s for conservation heroes who understand that every individual plant matters when a species is this close to extinction.

The Bottom Line

The Waianae Range starviolet represents both the incredible beauty of Hawaiian endemic flora and the urgent need for plant conservation. If you choose to grow this remarkable shrub, you’re not just adding a plant to your garden—you’re joining a critical conservation effort to save a species from disappearing forever.

Remember: with great botanical rarity comes great gardening responsibility. But for those ready to take on that challenge, few plants offer such a meaningful connection to Hawaii’s unique natural heritage.

Waianae Range Starviolet

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

Hedyotis L. - starviolet

Species

Hedyotis degeneri Fosberg - Waianae Range starviolet

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