North America Native Plant

Olapalapa

Botanical name: Cheirodendron trigynum helleri

USDA symbol: CHTRH3

Life cycle: perennial

Habit: tree

Native status: Native to Hawaii  

Synonyms: Cheirodendron helleri Sherff (CHHE2)  âš˜  Cheirodendron helleri Sherff var. microcarpum (CHHEM)  âš˜  Cheirodendron helleri Sherff var. multiflorum (Skottsb.) Sherff (CHHEM2)  âš˜  Cheirodendron helleri Sherff var. sodalium (CHHES)   

Olapalapa: A Rare Gem for Your Native Hawaiian Garden If you’re passionate about native Hawaiian plants and looking to add something truly special to your garden, let me introduce you to olapalapa (Cheirodendron trigynum helleri). This distinctive native tree might not be the most common choice at your local nursery, ...

Rare plant alert!

Region: Conservation status by state

Status: S3T2T3: Status is uncertain but is somewhere between the following rankings: 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. ⚘

Olapalapa: A Rare Gem for Your Native Hawaiian Garden

If you’re passionate about native Hawaiian plants and looking to add something truly special to your garden, let me introduce you to olapalapa (Cheirodendron trigynum helleri). This distinctive native tree might not be the most common choice at your local nursery, but it’s definitely worth seeking out for the right garden setting.

What Makes Olapalapa Special?

Olapalapa is a perennial tree that’s 100% Hawaiian born and raised – it’s endemic to our beautiful islands and found nowhere else on Earth. This makes it a true treasure for anyone interested in preserving and celebrating Hawaii’s unique plant heritage. As a member of the ginseng family, it brings a distinctive look to native landscapes with its characteristic growth pattern.

This lovely tree typically grows as a single-trunked specimen, reaching heights greater than 13-16 feet when mature, though it can sometimes develop multiple stems or stay shorter depending on growing conditions.

Where Does Olapalapa Call Home?

You’ll find olapalapa naturally growing throughout the Hawaiian Islands, where it thrives in the wet and mesic (moderately moist) forests that make our islands so lush and green.

A Word About Rarity

Here’s something important to know: olapalapa has a conservation status of S3T2T3, which means it’s considered uncommon to rare in its native habitat. This makes it extra special, but it also means we need to be responsible about how we source and grow it. If you’re interested in adding this beauty to your garden, make sure you’re getting it from reputable native plant nurseries that propagate their stock responsibly rather than collecting from wild populations.

Why Consider Olapalapa for Your Garden?

There are several compelling reasons to include this native Hawaiian tree in your landscape:

  • It supports native Hawaiian ecosystems and provides habitat for native insects and birds
  • As a native species, it’s naturally adapted to Hawaiian growing conditions once established
  • It adds authentic Hawaiian character to native plant gardens and restoration projects
  • It helps preserve Hawaii’s unique botanical heritage for future generations
  • The small clustered flowers provide nectar for native Hawaiian pollinators

Growing Olapalapa Successfully

Olapalapa does best in USDA hardiness zones 10-12, which makes it perfect for Hawaii’s tropical climate. Here’s what this native beauty needs to thrive:

Ideal Growing Conditions

  • Light: Partial to full shade – it naturally grows as an understory tree in Hawaiian forests
  • Soil: Moist, well-draining soil that mimics forest floor conditions
  • Water: Consistent moisture is key – this tree doesn’t like to dry out completely
  • Humidity: High humidity levels, which shouldn’t be a problem in most Hawaiian locations

Planting and Care Tips

  • Plant in a protected location away from strong trade winds
  • Add organic mulch around the base to help retain moisture and suppress weeds
  • Water regularly during establishment, then maintain consistent moisture
  • Consider companion planting with other native Hawaiian understory species
  • Be patient – like many native trees, olapalapa may take time to establish and show significant growth

Perfect Garden Settings

Olapalapa works beautifully in:

  • Native Hawaiian gardens focused on endemic species
  • Restoration projects in appropriate habitats
  • Shaded woodland gardens with other native plants
  • Educational landscapes showcasing Hawaiian biodiversity

The Bottom Line

While olapalapa might require a bit more effort to source and establish than common landscape trees, it offers something truly special: the chance to grow a piece of Hawaii’s irreplaceable natural heritage in your own backyard. Just remember to source responsibly and be patient with this rare beauty as it settles into its new home.

If you’re committed to native Hawaiian gardening and have the right growing conditions, olapalapa can be a meaningful and beautiful addition to your landscape. Plus, you’ll be doing your part to help preserve this special tree for future generations to enjoy.

Olapalapa

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Apiales

Family

Araliaceae Juss. - Ginseng family

Genus

Cheirodendron Nutt. ex Seem. - cheirodendron

Species

Cheirodendron trigynum (Gaudich.) A. Heller - olapalapa

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