North America Native Plant

Pacific Cyrtandra

Botanical name: Cyrtandra grayana

USDA symbol: CYGR6

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Synonyms: Cyrtandra grayana Hillebr. var. lanaiensis Rock (CYGRL)  âš˜  Cyrtandra grayana Hillebr. var. latifolia (CYGRL2)  âš˜  Cyrtandra grayana Hillebr. var. linearifolia Rock (CYGRL3)  âš˜  Cyrtandra grayana Hillebr. var. nervosa Rock (CYGRN)   

Pacific Cyrtandra: A Rare Hawaiian Native Worth Protecting in Your Garden If you’re passionate about native Hawaiian plants and conservation gardening, you might want to learn about Pacific cyrtandra (Cyrtandra grayana). This perennial shrub represents one of Hawaii’s unique endemic species, though it comes with some important considerations for the ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: 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) ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Pacific Cyrtandra: A Rare Hawaiian Native Worth Protecting in Your Garden

If you’re passionate about native Hawaiian plants and conservation gardening, you might want to learn about Pacific cyrtandra (Cyrtandra grayana). This perennial shrub represents one of Hawaii’s unique endemic species, though it comes with some important considerations for the responsible gardener.

What Is Pacific Cyrtandra?

Pacific cyrtandra is a native Hawaiian shrub belonging to the African violet family (Gesneriaceae). As a perennial, multi-stemmed woody plant, it typically grows as a shrub less than 13-16 feet in height, with several stems arising from or near the ground. Like many Hawaiian natives, this species has evolved specifically to thrive in the island’s unique ecosystem.

The plant is found exclusively in Hawaii, making it a true island endemic. Its natural distribution is limited to the Hawaiian islands, where it has adapted to local growing conditions over thousands of years.

Why Consider Pacific Cyrtandra for Your Garden?

There are compelling reasons to consider this native Hawaiian species, but also important cautions to keep in mind:

The Good News

  • Native heritage: As a true Hawaiian endemic, it supports local ecosystem health
  • Adaptability: Its facultative wetland status means it can grow in both wetland and non-wetland conditions
  • Conservation value: Growing native species helps preserve Hawaii’s botanical heritage
  • Unique character: Adds authentic Hawaiian flora to your landscape

Important Considerations

  • Rarity status: With a Global Conservation Status of S2S3, this plant has some conservation concerns
  • Limited availability: Rare plants are often difficult to source responsibly
  • Specialized needs: As a Hawaiian endemic, it has specific growing requirements

Growing Pacific Cyrtandra Successfully

Given the limited cultivation information available for this specific species, growing Pacific cyrtandra requires some educated guesswork based on related species and its natural habitat preferences.

Climate Requirements

Pacific cyrtandra is naturally adapted to Hawaii’s tropical climate, which translates to USDA hardiness zones 10-12. If you’re gardening outside of Hawaii, you’ll likely need greenhouse conditions or indoor cultivation.

Growing Conditions

Based on its facultative wetland status and shrub habit, Pacific cyrtandra likely prefers:

  • Partial shade to filtered sunlight
  • Consistently moist but well-draining soil
  • High humidity levels
  • Protection from strong winds

Garden Placement

This shrub works well in:

  • Native Hawaiian landscape designs
  • Shade gardens and understory plantings
  • Conservation-focused gardens
  • Areas that can accommodate flexible moisture levels

Responsible Sourcing Is Critical

Here’s the most important part: if you’re interested in growing Pacific cyrtandra, you must ensure you’re obtaining plants from responsible, legal sources. Given its S2S3 conservation status, wild collection could harm remaining populations. Look for:

  • Reputable native plant nurseries in Hawaii
  • Conservation organizations with propagation programs
  • Botanical gardens that may offer seeds or plants
  • Academic institutions involved in Hawaiian plant conservation

The Bottom Line

Pacific cyrtandra represents the kind of plant that makes native gardening both exciting and challenging. While its rarity means you should approach cultivation thoughtfully and responsibly, growing this species can contribute to conservation efforts while adding authentic Hawaiian character to your garden.

If you’re gardening in Hawaii and can source this plant responsibly, it’s worth considering for a native landscape. However, if you’re new to native Hawaiian plants, you might want to start with more common native species before tackling rare ones like Pacific cyrtandra.

Remember: the goal isn’t just to grow rare plants, but to grow them in ways that support rather than threaten their survival in the wild. Pacific cyrtandra deserves that level of respect and care.

Pacific 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 grayana Hillebr. - Pacific cyrtandra

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