North America Native Plant

Kanehira’s Serianthes

Botanical name: Serianthes kanehirae

USDA symbol: SEKA2

Native status: Native to Pacific Basin excluding Hawaii  

Kanehira’s Serianthes: A Rare Pacific Island Beauty for Tropical Gardens If you’re lucky enough to garden in a tropical paradise, you might want to consider adding Kanehira’s serianthes (Serianthes kanehirae) to your landscape. This stunning Pacific island native brings both beauty and ecological value to the right garden setting, though ...

Kanehira’s Serianthes: A Rare Pacific Island Beauty for Tropical Gardens

If you’re lucky enough to garden in a tropical paradise, you might want to consider adding Kanehira’s serianthes (Serianthes kanehirae) to your landscape. This stunning Pacific island native brings both beauty and ecological value to the right garden setting, though it’s definitely not a plant for every gardener or every climate!

Where Does Kanehira’s Serianthes Come From?

Kanehira’s serianthes is native to the Pacific Basin, specifically found growing naturally in Guam and Palau. This tree has evolved to thrive in the warm, humid conditions of these tropical islands, making it a true child of the Pacific.

What Makes This Tree Special?

When mature, Kanehira’s serianthes develops into an impressive shade tree with delicate, feathery compound leaves that create a lovely filtered canopy. But the real showstopper is its flowers – gorgeous pink to red powder-puff blooms that look almost too pretty to be real. These eye-catching flowers don’t just look amazing; they’re also magnets for butterflies, bees, and other pollinators, making your garden a buzzing hub of activity.

Is This Tree Right for Your Garden?

Here’s where we need to get real about growing conditions. Kanehira’s serianthes is only suitable for USDA hardiness zones 10-12, which means you’ll need a consistently warm, tropical climate year-round. If you’re gardening anywhere that sees frost or extended cool periods, this tree simply won’t survive.

For those in the right climate zones, this tree works beautifully as:

  • A specimen tree for large tropical landscapes
  • A shade provider in spacious gardens
  • Part of native Pacific island restoration projects
  • An anchor plant in tropical-themed designs

Growing Kanehira’s Serianthes Successfully

If you’re in the right climate zone and have decided to give this Pacific beauty a try, here are the key growing conditions it needs:

  • Light: Full sun to partial shade
  • Soil: Well-draining soil that doesn’t get waterlogged
  • Water: Regular watering, but avoid overwatering
  • Climate: Warm temperatures year-round with good humidity
  • Protection: Shelter from strong winds, which can damage the delicate foliage

A Word About Rarity and Responsible Gardening

Many Serianthes species are quite rare in their native habitats, and while we don’t have specific information about the conservation status of Kanehira’s serianthes, it’s always wise to source any plants responsibly. If you decide to grow this tree, make sure you’re purchasing from reputable nurseries that propagate plants ethically rather than collecting from wild populations.

The Bottom Line

Kanehira’s serianthes is a gorgeous addition to tropical gardens, but it’s definitely a specialist plant for specialist conditions. If you live in zones 10-12 and have the space for a substantial shade tree, its beautiful flowers and pollinator appeal make it worth considering. Just remember to source your plant responsibly and be prepared to provide the warm, humid conditions this Pacific island native craves.

For gardeners in cooler climates, you’ll want to look for native shade trees suited to your local conditions instead. Every region has its own beautiful native species that will thrive with less fuss and provide similar benefits to local wildlife!

Kanehira’s Serianthes

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

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Serianthes Benth. - serianthes

Species

Serianthes kanehirae Fosberg - Kanehira's serianthes

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