North America Native Plant

Maidenhair Spleenwort

Botanical name: Asplenium trichomanes

USDA symbol: ASTR2

Life cycle: perennial

Habit: forb

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to Greenland âš˜ Hawaii âš˜ Native to the lower 48 states  

Maidenhair Spleenwort: The Charming Little Fern That Thrives Where Others Fear to Grow If you’ve ever wondered what that delicate little fern growing in the cracks of stone walls is, chances are you’ve spotted maidenhair spleenwort (Asplenium trichomanes). This petite native perennial fern might be small in stature, but it’s ...

Rare plant alert!

Region: Alabama

Status: S2S3: Status is uncertain but is somewhere between the following rankings: 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 ⚘

Maidenhair Spleenwort: The Charming Little Fern That Thrives Where Others Fear to Grow

If you’ve ever wondered what that delicate little fern growing in the cracks of stone walls is, chances are you’ve spotted maidenhair spleenwort (Asplenium trichomanes). This petite native perennial fern might be small in stature, but it’s huge in charm and surprisingly tough for such a dainty-looking plant.

A True North American Native

Maidenhair spleenwort is a genuine native species found throughout most of North America. From the rugged landscapes of Alaska and Canada’s provinces (including Alberta, British Columbia, New Brunswick, Nova Scotia, Ontario, Quebec, and the Yukon) down through nearly every U.S. state, this little fern has made itself at home in diverse climates and conditions. Whether you’re gardening in Maine or Montana, Florida or Oregon, there’s a good chance this species naturally occurs in your area.

The plant’s impressive geographic distribution spans from coast to coast, thriving in locations as varied as the rocky shores of Newfoundland to the desert Southwest, though it shows different moisture preferences depending on the region.

What Makes This Fern Special

Don’t let the name fool you – maidenhair spleenwort isn’t actually related to the more familiar maidenhair fern. What sets this species apart is its distinctive appearance: tiny, delicate fronds with small, rounded leaflets arranged along thin, wiry black stems. The contrast between the bright green foliage and those characteristic dark stems creates an elegant, almost lace-like appearance that adds textural interest to any garden.

As a perennial fern, maidenhair spleenwort will return year after year, slowly forming small colonies in suitable locations. It’s a petite plant, typically staying under 8 inches tall and spreading gradually through underground rhizomes.

Where and How to Use It in Your Garden

This fern is perfect for:

  • Rock gardens and stone walls
  • Woodland or shade gardens
  • Naturalized areas
  • Crevice gardens
  • Areas with poor, rocky soil where other plants struggle

Maidenhair spleenwort truly shines when planted in rock gardens or allowed to colonize the gaps in stone walls. Its natural habitat includes rocky outcrops and cliff faces, so it’s perfectly adapted to these challenging growing conditions that many other plants find inhospitable.

Growing Conditions and Care

One of the best things about maidenhair spleenwort is how easy-going it is once established. This fern thrives in partial to full shade and actually prefers the kind of well-draining, rocky soil that gives many gardeners headaches. Hardy in USDA zones 3-8, it can handle both cold winters and moderate heat.

The wetland status varies by region – in some areas like Hawaii and much of the Midwest, it prefers drier upland conditions, while in other regions it’s more flexible about moisture levels. This adaptability is part of what makes it such a successful native species.

For planting and care:

  • Choose a shaded to partially shaded location
  • Ensure good drainage – soggy soil is this fern’s enemy
  • Plant in rocky or gravelly soil if possible
  • Water regularly the first season, then reduce as the plant establishes
  • Minimal fertilization needed
  • Remove old fronds in late winter or early spring

A Note About Rarity

While maidenhair spleenwort is widespread across North America, it does have some conservation considerations. In Alabama, for example, it carries a rarity ranking of S2S3, indicating it’s uncommon to rare in that state. If you’re gardening in an area where this species is less common, consider sourcing your plants from reputable native plant nurseries rather than wild collection to help protect natural populations.

Wildlife and Pollinator Considerations

As a fern, maidenhair spleenwort doesn’t produce flowers or nectar, so it won’t directly attract pollinators like bees and butterflies. However, it does contribute to the overall ecosystem by providing habitat structure and contributing to the biodiversity of native plant communities.

Why Choose Maidenhair Spleenwort?

If you’re looking for a low-maintenance native plant that can handle challenging growing conditions while adding delicate beauty to your garden, maidenhair spleenwort is an excellent choice. It’s particularly valuable for gardeners dealing with rocky soil, dry shade, or areas where other plants struggle to establish. Plus, as a widespread native species, you’ll be supporting local ecosystems while enjoying a plant that’s perfectly adapted to your regional climate.

This little fern proves that sometimes the most unassuming plants can be the most rewarding – offering both beauty and resilience in a perfectly sized package for today’s gardens.

Maidenhair 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 trichomanes L. - maidenhair spleenwort

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