North America Native Plant

Birdnest Fern

Botanical name: Asplenium polyodon var. subcaudatum

USDA symbol: ASPOS2

Life cycle: perennial

Habit: forb

Native status: Native to Hawaii  

Hawaiian Bird’s Nest Fern: A Tropical Native Worth Knowing If you’re passionate about Hawaiian native plants or looking to create an authentic tropical garden, the Hawaiian bird’s nest fern (Asplenium polyodon var. subcaudatum) deserves a spot on your radar. This stunning endemic fern brings both ecological value and dramatic beauty ...

Hawaiian Bird’s Nest Fern: A Tropical Native Worth Knowing

If you’re passionate about Hawaiian native plants or looking to create an authentic tropical garden, the Hawaiian bird’s nest fern (Asplenium polyodon var. subcaudatum) deserves a spot on your radar. This stunning endemic fern brings both ecological value and dramatic beauty to the right garden setting.

What Makes This Fern Special?

The Hawaiian bird’s nest fern is a perennial fern that’s exclusively native to the Hawaiian Islands. Unlike many plants you’ll find in tropical gardens, this beauty evolved right in Hawaii’s unique ecosystems, making it a true piece of the islands’ natural heritage.

As its common name suggests, this fern grows in the classic bird’s nest formation – large, dramatic fronds unfurling from a central crown to create a stunning rosette pattern. It’s the kind of plant that makes visitors stop and stare, wondering if they’ve stumbled into a prehistoric jungle.

Where You’ll Find It Growing Wild

This remarkable fern calls only Hawaii home, growing naturally throughout the Hawaiian Islands. You won’t find this exact variety anywhere else on Earth, which makes it pretty special if you’re into rare and unique plants.

Is This Fern Right for Your Garden?

Here’s the thing about Hawaiian bird’s nest ferns – they’re absolutely gorgeous, but they’re also quite particular about their growing conditions. This isn’t your typical plant it and forget it garden addition.

The Good News:

  • Stunning architectural form that serves as a natural focal point
  • Perfect for creating authentic Hawaiian native plant gardens
  • Supports local ecosystem health when grown in Hawaii
  • Thrives in shady spots where many other plants struggle

The Challenges:

  • Only suitable for USDA zones 10-12 (think Hawaii, southern Florida, or greenhouse growing)
  • Requires consistent humidity and moisture
  • Needs protection from direct sunlight
  • Can be difficult to source responsibly

Growing Conditions That Make It Happy

If you’re lucky enough to garden in a tropical climate, here’s what your Hawaiian bird’s nest fern will love:

  • Light: Shade to partial shade – think filtered sunlight through tree canopies
  • Moisture: Consistent humidity and well-draining but moist soil
  • Temperature: Warm, tropical conditions year-round
  • Soil: Rich, organic matter with excellent drainage

A Word About Conservation

Since this is a Hawaiian endemic species, it’s important to source any plants responsibly. If you’re interested in growing this fern, look for reputable native plant nurseries in Hawaii or specialty tropical plant suppliers who can verify their sourcing practices. Never collect plants from the wild – it’s not only harmful to wild populations but often illegal as well.

Perfect Garden Companions

This fern shines in tropical shade gardens alongside other Hawaiian natives like:

  • Other native Hawaiian ferns
  • Native Hawaiian flowering plants
  • Tropical understory shrubs
  • Moss and other shade-loving natives

The Bottom Line

The Hawaiian bird’s nest fern is a showstopper that brings authentic island beauty to the right garden setting. While it requires specific growing conditions and careful sourcing, it rewards dedicated gardeners with unmatched tropical elegance and the satisfaction of growing a true Hawaiian native. If you can meet its needs and source it responsibly, this fern makes a meaningful addition to any tropical native plant collection.

Birdnest Fern

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Aspleniaceae Newman - Spleenwort family

Genus

Asplenium L. - spleenwort

Species

Asplenium polyodon G. Forst. - sickle speenwort

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