North America Native Plant

Olopu

Botanical name: Viola chamissoniana tracheliifolia

USDA symbol: VICHT

Life cycle: perennial

Habit: subshrub

Native status: Native to Hawaii  

Synonyms: Viola tracheliifolia Gingins (VITR6)  âš˜  Viola tracheliifolia Gingins var. olokelensis (Skottsb.) Skottsb. (VITRO)  âš˜  Viola tracheliifolia Gingins var. populifolia Skottsb. (VITRP)   

Olopu: Hawaii’s Charming Native Violet Worth Growing Responsibly Meet the olopu (Viola chamissoniana tracheliifolia), a delightful little native Hawaiian violet that’s as unique as its melodic name. This perennial herb brings a touch of understated elegance to any garden lucky enough to host it, though its rarity makes it a ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3T2T3: 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) ⚘ Subspecies or variety is 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 ⚘ Subspecies or variety is 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. ⚘

Olopu: Hawaii’s Charming Native Violet Worth Growing Responsibly

Meet the olopu (Viola chamissoniana tracheliifolia), a delightful little native Hawaiian violet that’s as unique as its melodic name. This perennial herb brings a touch of understated elegance to any garden lucky enough to host it, though its rarity makes it a special treasure that requires thoughtful consideration before planting.

What Makes Olopu Special

As a true Hawaiian endemic, olopu represents the kind of botanical heritage that makes the islands so special. This charming forb—a fancy way of saying it’s an herbaceous flowering plant without woody stems—has been quietly beautifying Hawaii’s landscapes long before any of us arrived on the scene.

The plant goes by several scientific aliases, including Viola tracheliifolia Gingins and its various forms, but whatever you call it, olopu remains a distinctly Hawaiian treasure.

Where You’ll Find Olopu

Olopu is exclusively native to Hawaii, making it a true island original. You won’t find this little violet growing wild anywhere else in the world, which adds to both its charm and its conservation value.

Why Consider Growing Olopu

Here’s where things get interesting—and important. Olopu carries a conservation status of S2S3T2T3, which essentially means it’s somewhere between rare and uncommon. This isn’t necessarily cause for alarm, but it does mean we need to be thoughtful gardeners if we want to welcome this plant into our landscapes.

The good news? Growing native plants like olopu helps support local ecosystems and preserves Hawaii’s unique botanical heritage. As a perennial herb, it offers lasting value in the garden rather than requiring annual replanting.

Garden Design and Landscape Role

Olopu works beautifully as:

  • Understory plantings in native Hawaiian gardens
  • Ground cover in shaded areas
  • Part of conservation-focused landscape designs
  • Educational plantings that showcase native Hawaiian flora

Growing Conditions and Care

While specific growing requirements for olopu aren’t well-documented, most Hawaiian violets appreciate:

  • Partial to full shade conditions
  • Moist, well-draining soil
  • Protection from strong winds
  • USDA hardiness zones 10-12 (tropical climates)

As with many native Hawaiian plants, olopu likely thrives in conditions that mimic its natural habitat—think forest understory rather than sunny, dry locations.

The Responsible Growing Approach

Here’s the most important part: if you’re interested in growing olopu, make sure you source your plants responsibly. Given its conservation status, wild collection is absolutely off the table. Instead:

  • Work with reputable native plant nurseries
  • Ensure any plants you acquire are propagated, not wild-collected
  • Consider supporting conservation efforts for Hawaiian native plants
  • Connect with local native plant societies for guidance

The Bottom Line

Olopu represents the kind of plant that makes native gardening both meaningful and rewarding. While its rarity means you’ll need to be a particularly conscientious gardener, successfully growing this Hawaiian endemic contributes to preserving the islands’ unique botanical legacy.

If you can source plants responsibly and provide the right growing conditions, olopu offers the satisfaction of nurturing a true piece of Hawaiian natural history. Just remember—with rarity comes responsibility, so approach this charming violet with the respect it deserves.

Olopu

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Violales

Family

Violaceae Batsch - Violet family

Genus

Viola L. - violet

Species

Viola chamissoniana Gingins - olopu

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