North America Native Plant

Spleenwort

Botanical name: Asplenium ×trudellii

USDA symbol: ASTR11

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Asplenium pinnatifidum Nutt. var. trudellii (Wherry) Clute (ASPIT)  âš˜  Ã—Asplenosorus trudellii (Wherry) Mickel (ASTR13)   

Trudell’s Spleenwort: A Rare Native Fern for the Rock Garden Enthusiast Meet Trudell’s spleenwort (Asplenium ×trudellii), a charming little fern that’s perfect for gardeners who love a botanical challenge. This native perennial fern brings a touch of wild elegance to specialized garden spaces, though it’s definitely not your average houseplant-store ...

Trudell’s Spleenwort: A Rare Native Fern for the Rock Garden Enthusiast

Meet Trudell’s spleenwort (Asplenium ×trudellii), a charming little fern that’s perfect for gardeners who love a botanical challenge. This native perennial fern brings a touch of wild elegance to specialized garden spaces, though it’s definitely not your average houseplant-store find.

What Makes This Fern Special

Trudell’s spleenwort is actually a natural hybrid, which is what that little × symbol in its name tells us. This makes it somewhat of a botanical curiosity – a naturally occurring cross between two other fern species that has carved out its own niche in the plant world. The delicate, deeply lobed fronds create an intricate, lacy appearance that adds fine texture to any garden setting.

Where You’ll Find This Native Beauty

This spleenwort is a true American native, calling the eastern United States home. You can find it naturally growing across twelve states: Alabama, Georgia, Illinois, Kentucky, Maryland, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, and West Virginia. It’s particularly fond of the Appalachian region, where it tucks itself into rocky crevices and cliff faces.

Why Grow Trudell’s Spleenwort?

Here’s why this little fern might win your heart:

  • Native credentials: Supporting local ecosystems by choosing native plants
  • Unique character: Its hybrid nature makes it a conversation starter
  • Low maintenance: Once established, it’s quite self-sufficient
  • Specialized appeal: Perfect for rock garden enthusiasts
  • Year-round interest: Evergreen in milder climates

Where to Use It in Your Garden

Trudell’s spleenwort isn’t the fern for every garden situation, but it absolutely shines in the right spot:

  • Rock gardens: Its natural habitat preference makes it ideal here
  • Woodland edges: Mimics its natural cliff and rocky outcrop environment
  • Shade gardens: Adds delicate texture under trees and shrubs
  • Naturalized areas: Perfect for wild or native plant gardens

Growing Conditions and Care

Here’s where things get specific – this fern has particular needs that mirror its natural rocky habitat:

Light: Partial to full shade works best. Think dappled woodland light rather than deep darkness.

Soil: Well-draining is absolutely crucial. This fern despises wet feet and thrives in rocky, gritty soil that drains quickly.

Climate: Hardy in USDA zones 4-8, so it can handle cold winters but appreciates some protection from extreme heat.

Water: Drought-tolerant once established, but appreciates occasional watering during extended dry periods.

Planting and Care Tips

Getting Trudell’s spleenwort established requires attention to detail:

  • Drainage first: Amend heavy soils with coarse sand, gravel, or small rocks
  • Morning sun okay: A bit of gentle morning light can be beneficial
  • Mulch lightly: Use gravel or small stone mulch rather than organic mulch
  • Be patient: Ferns establish slowly, so don’t expect instant results
  • Minimal fertilizer: These plants prefer lean conditions

A Word About Availability

Here’s the reality check: Trudell’s spleenwort isn’t commonly available at your local garden center. This specialized fern is more likely found through native plant societies, specialty fern growers, or botanical sales. The wait and search might be worth it for dedicated native plant gardeners or fern enthusiasts.

The Bottom Line

Trudell’s spleenwort is definitely a niche plant – not for every gardener or every garden situation. But if you’re passionate about native plants, love the challenge of growing something unique, and have the right rocky, well-draining spot, this little fern could be a perfect addition to your plant collection. It’s a living piece of American botanical heritage that brings wild beauty to specialized garden spaces.

Just remember: success with this fern is all about mimicking its natural rocky habitat. Get the drainage right, provide some shade, and you’ll have a charming native conversation piece that connects your garden to the wild landscapes of eastern North America.

Spleenwort

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 ×trudellii Wherry (pro sp.) [montanum × pinnatifidum] - spleenwort

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