Native Plants

Fosberg’s Starviolet

Hedyotis fosbergii

USDA symbol: HEFO5

perennial shrub

Hawaii: native

Meet Fosberg’s starviolet (Hedyotis fosbergii), a charming little shrub that’s as rare as it is special. This Hawaiian endemic belongs to the coffee family and represents one of the islands’ precious botanical treasures that most gardeners will never encounter in typical nurseries. This perennial shrub is a true Hawaiian native, ...

Fosberg’s Starviolet may be listed as rare in your area.
Global Conservation Status

Status: S2S3 | Vulnerable: Found only in a restricted range (even if abundant at some locations). Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals.

Fosberg’s Starviolet: A Rare Hawaiian Gem Worth Protecting

Meet Fosberg’s starviolet (Hedyotis fosbergii), a charming little shrub that’s as rare as it is special. This Hawaiian endemic belongs to the coffee family and represents one of the islands’ precious botanical treasures that most gardeners will never encounter in typical nurseries.

What Makes Fosberg’s Starviolet Special

This perennial shrub is a true Hawaiian native, found exclusively in the Hawaiian Islands. Like many shrubs, it typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet tall with several stems arising from near the ground. What sets this plant apart isn’t just its island origins, but its incredible rarity in the wild.

Where You’ll Find It (Or Won’t)

Fosberg’s starviolet calls only Hawaii home, making it one of those special plants that evolved in isolation on these Pacific islands. Its distribution is limited to specific Hawaiian habitats, which contributes to its conservation concerns.

  • Species observed
  • No observations

A Word of Caution: Rarity Alert

Here’s where things get serious, fellow plant lovers. Fosberg’s starviolet has a Global Conservation Status of S2S3, which means it’s considered rare to uncommon in the wild. This isn’t your average garden center find, and for good reason – this plant needs our protection, not our picking.

If you’re absolutely committed to growing this species, please ensure any plant material comes from responsible, authorized sources that support conservation efforts rather than wild collection. Better yet, consider supporting Hawaiian botanical gardens and conservation organizations that work to protect these irreplaceable species.

Growing Conditions and Habitat Needs

Fosberg’s starviolet has a facultative wetland status in Hawaii, meaning it’s flexible enough to grow in both wetland and non-wetland conditions. This adaptability might seem encouraging for cultivation, but remember that native Hawaiian plants often have very specific soil, climate, and ecosystem requirements that can be challenging to replicate in typical garden settings.

Without detailed cultivation information readily available (which is common for rare native species), growing this plant successfully would require:

  • Deep knowledge of Hawaiian native plant cultivation
  • Appropriate climate conditions similar to its native range
  • Specialized soil and moisture requirements
  • Patience and expertise in working with rare species

Better Alternatives for Your Garden

Instead of pursuing this rare beauty, why not explore other Hawaiian natives that are more readily available and better suited to cultivation? Many Hawaiian native plants offer similar charm without the conservation concerns. Consider working with local Hawaiian native plant societies or botanical gardens to find appropriate alternatives that won’t impact wild populations.

Supporting Conservation Instead

The best way to appreciate Fosberg’s starviolet is to support the organizations working to protect it in its natural habitat. Hawaiian botanical gardens, native plant societies, and conservation groups are doing incredible work to preserve these irreplaceable species for future generations.

Remember, sometimes the most loving thing we can do for a plant is to admire it from afar and ensure its wild populations remain undisturbed. Fosberg’s starviolet serves as a beautiful reminder of Hawaii’s unique botanical heritage – let’s help keep it that way.

Hedyotis fosbergii 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. Hedyotis fosbergii is also known as:

Gouldia st.-johnii | USDA symbol: GOST2
Gouldia st.-johnii Fosberg var. munroi | USDA symbol: GOSTM
Kadua fosbergii Wagner & | USDA symbol: KAFO3

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: Asteridae
Order: Rubiales
Family: Rubiaceae Juss. - Madder family
Genus: Hedyotis L. - starviolet

Species: Hedyotis fosbergii W.L. Wagner & D.R. Herbst - Fosberg's starviolet

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