North America Native Plant

Kohala Mountain Cyrtandra

Botanical name: Cyrtandra kohalae

USDA symbol: CYKO

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Kohala Mountain Cyrtandra: A Rare Hawaiian Treasure Worth Protecting If you’re passionate about native Hawaiian plants and conservation gardening, you’ve probably heard whispers about the elusive Kohala Mountain cyrtandra (Cyrtandra kohalae). This remarkable shrub represents one of Hawaii’s most precious botanical treasures – and sadly, one of its most endangered. ...

Rare plant alert!

Region: Conservation status by state

Status: SH: Status is uncertain but is somewhere between the following rankings: Possibly Extinct: Known only from historical occurrences. Still some hope of rediscovery ⚘

Kohala Mountain Cyrtandra: A Rare Hawaiian Treasure Worth Protecting

If you’re passionate about native Hawaiian plants and conservation gardening, you’ve probably heard whispers about the elusive Kohala Mountain cyrtandra (Cyrtandra kohalae). This remarkable shrub represents one of Hawaii’s most precious botanical treasures – and sadly, one of its most endangered.

What Makes This Plant So Special?

The Kohala Mountain cyrtandra is a perennial, multi-stemmed woody shrub that typically grows less than 13 to 16 feet tall. As a member of the gesneriad family, it likely produces beautiful tubular flowers that would have once attracted native Hawaiian pollinators in its mountain habitat.

This plant is endemic to Hawaii, meaning it exists nowhere else on Earth. Specifically, it calls the Kohala Mountains on the Big Island its home – or at least, it used to.

The Hard Truth About Rarity

Here’s where things get serious, fellow plant lovers. The Kohala Mountain cyrtandra has a Global Conservation Status of SH, which stands for Possibly Extirpated. In plain terms, this means the plant is known only from historical records, and there’s just a glimmer of hope that it might still exist somewhere in the wild.

This isn’t just rare – this is we’re not even sure it still exists rare.

Should You Try to Grow It?

If you’re wondering whether you should plant Kohala Mountain cyrtandra in your garden, the answer is complex. While supporting the conservation of native Hawaiian plants is incredibly important, you should only consider growing this species if:

  • You can obtain seeds or plants from legitimate conservation programs
  • You live in USDA hardiness zones 10-11 with tropical conditions
  • You can provide the specialized montane habitat it requires
  • You’re committed to participating in conservation efforts

Growing Conditions and Care

If you’re fortunate enough to work with conservation groups that have this species, the Kohala Mountain cyrtandra likely prefers:

  • Shaded, humid conditions similar to Hawaiian mountain forests
  • Well-draining but consistently moist soil
  • Protection from strong winds
  • Warm temperatures year-round (zones 10-11 only)

As a shrub, it would benefit from gentle pruning to maintain its natural multi-stemmed growth habit, though specific care requirements remain largely unknown due to its rarity.

The Role in Your Garden

If you’re lucky enough to grow Kohala Mountain cyrtandra, it would serve as:

  • A centerpiece in a native Hawaiian conservation garden
  • An educational tool to raise awareness about plant extinction
  • A potential contributor to species recovery efforts
  • A connection to Hawaii’s unique evolutionary history

Supporting Conservation Without Growing It

Even if you can’t grow this rare beauty yourself, you can still help:

  • Support Hawaiian plant conservation organizations
  • Choose other native Hawaiian plants for your garden
  • Spread awareness about the importance of protecting endemic species
  • Visit botanical gardens that participate in conservation programs

The Bottom Line

The Kohala Mountain cyrtandra represents both the incredible diversity of Hawaiian flora and the urgent need for conservation action. While most of us won’t have the opportunity to grow this possibly extinct species, we can honor its memory by protecting the native plants we do have access to and supporting the dedicated scientists working to prevent future losses.

Sometimes the most important plants aren’t the ones we can grow in our gardens – they’re the ones that remind us why every native species matters.

Kohala Mountain Cyrtandra

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

Scrophulariales

Family

Gesneriaceae Rich. & Juss. - Gesneriad family

Genus

Cyrtandra J.R. Forst. & G. Forst. - cyrtandra

Species

Cyrtandra kohalae Rock - Kohala Mountain cyrtandra

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