North America Native Plant

Weeping Fern

Botanical name: Lepisorus thunbergianus

USDA symbol: LETH6

Life cycle: perennial

Habit: forb

Native status: Native to Hawaii  

Synonyms: Pleopeltis linearis (Thunb.) T. Moore (PLLI2)  âš˜  Pleopeltis thunbergiana Kaulf. (PLTH)  âš˜  Polypodium lineare Thunb. (POLI9)  âš˜  Polypodium thunbergianum (Kaulf.) C. Chr. (POTH6)   

Weeping Fern: A Delicate Hawaiian Native for Your Tropical Garden If you’ve ever wandered through Hawaii’s lush forests and spotted delicate, drooping ferns clinging to tree bark, you’ve likely encountered the charming weeping fern (Lepisorus thunbergianus). This petite epiphytic fern, also known by its Hawaiian name pakahakaha, brings a touch ...

Weeping Fern: A Delicate Hawaiian Native for Your Tropical Garden

If you’ve ever wandered through Hawaii’s lush forests and spotted delicate, drooping ferns clinging to tree bark, you’ve likely encountered the charming weeping fern (Lepisorus thunbergianus). This petite epiphytic fern, also known by its Hawaiian name pakahakaha, brings a touch of tropical elegance to any garden that can accommodate its specific needs.

What Makes Weeping Fern Special

The weeping fern is a true native Hawaiian treasure, though it also calls other Pacific regions home. As an epiphytic fern, it doesn’t grow in soil like most plants we’re familiar with. Instead, it makes its home on tree bark, rocks, and other surfaces, drawing moisture and nutrients from the air and rain.

This perennial fern produces narrow, leathery fronds that cascade gracefully downward, creating the weeping effect that gives it its common name. The fronds typically reach just a few inches in length, making this a relatively small and manageable addition to your garden.

Where You’ll Find Weeping Fern

In its native habitat, weeping fern thrives throughout Hawaii, where it’s considered a facultative upland species. This means you’ll usually find it in non-wetland areas, though it can occasionally pop up in wetter locations. The fern prefers the dappled shade of Hawaii’s native forests, where it can attach itself to the bark of larger trees.

Is Weeping Fern Right for Your Garden?

Before you get excited about adding this Hawaiian native to your collection, consider whether your garden can meet its rather specific needs:

  • You live in USDA hardiness zones 9-11
  • You can provide consistently high humidity
  • You have shaded areas with indirect light
  • You’re comfortable with epiphytic growing methods

If you checked all those boxes, weeping fern could be a delightful addition to your tropical or subtropical garden. It’s particularly well-suited for:

  • Shade gardens where traditional plants struggle
  • Epiphyte gardens mounted on trees or structures
  • Tropical landscape designs seeking authentic Hawaiian plants
  • Rock gardens with good drainage and humidity

Growing Weeping Fern Successfully

Since weeping fern is an epiphyte, forget everything you know about traditional planting. Here’s how to give this unique fern the home it craves:

Mounting and Support: Attach your weeping fern to tree bark, cork bark, or rough rocks using fishing line or plant ties. The key is providing a surface it can grip while allowing air circulation around the roots.

Light Conditions: Bright, indirect light works best. Direct sunlight will quickly damage the delicate fronds, while too much shade will slow growth.

Humidity and Water: This is where many gardeners struggle. Weeping fern needs consistently high humidity (60% or higher) and regular misting. In drier climates, you might need to create a microclimate using humidity trays or frequent watering.

Temperature: Keep temperatures between 65-80°F (18-27°C). These ferns don’t tolerate frost or extreme heat.

Identifying Weeping Fern

Weeping fern is relatively easy to identify once you know what to look for:

  • Small, narrow fronds that droop or cascade downward
  • Leathery texture that feels thick compared to other ferns
  • Grows as an epiphyte on trees, rocks, or other surfaces
  • Fronds typically measure 2-6 inches in length
  • Forms small clusters or colonies over time

Benefits to Your Garden

While weeping fern won’t attract pollinators like flowering plants, it offers other valuable benefits:

  • Adds texture and visual interest to shaded areas
  • Helps create authentic tropical atmospheres
  • Requires no soil, making it perfect for challenging locations
  • Supports native Hawaiian plant diversity if you’re in suitable climates
  • Low maintenance once established in proper conditions

Weeping fern might not be the easiest plant for beginners, but for gardeners in tropical zones looking to add authentic Hawaiian character to their landscape, it’s definitely worth considering. Just remember that success with this charming epiphyte depends entirely on your ability to recreate its preferred humid, shaded forest conditions.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Hawaii

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Weeping Fern

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Polypodiaceae J. Presl & C. Presl - Polypody family

Genus

Lepisorus (J. Sm.) Ching - lepisorus

Species

Lepisorus thunbergianus (Kaulf.) Ching - weeping fern

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