North America Native Plant

Aleutian Maidenhair

Botanical name: Adiantum aleuticum

USDA symbol: ADAL

Life cycle: perennial

Habit: forb

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

Synonyms: Adiantum pedatum L. var. aleuticum Rupr. (ADPEA)  âš˜  Adiantum pedatum L. ssp. aleuticum (Rupr.) Calder & Roy L. Taylor (ADPEA2)  âš˜  Adiantum pedatum L. ssp. calderi Cody (ADPEC)  âš˜  Adiantum pedatum L. ssp. subpumilum (W.H. Wagner) Lellinger (ADPES)  âš˜  Adiantum pedatum L. var. subpumilum W.H. Wagner (ADPES2)   

Aleutian Maidenhair: A Delicate Native Fern for Your Shade Garden If you’re looking to add some ethereal beauty to your shaded garden spaces, the Aleutian maidenhair (Adiantum aleuticum) might just be the perfect native plant to consider. This graceful fern brings a touch of woodland magic wherever it grows, with ...

Aleutian Maidenhair: A Delicate Native Fern for Your Shade Garden

If you’re looking to add some ethereal beauty to your shaded garden spaces, the Aleutian maidenhair (Adiantum aleuticum) might just be the perfect native plant to consider. This graceful fern brings a touch of woodland magic wherever it grows, with its distinctive fan-shaped fronds dancing on impossibly thin, dark stems.

What Makes Aleutian Maidenhair Special?

The Aleutian maidenhair is a perennial fern that’s perfectly adapted to North American growing conditions. As a true native, it has been gracing our woodlands and rocky slopes for millennia, making it an excellent choice for gardeners who want to support local ecosystems while enjoying stunning natural beauty.

This charming fern is classified as a forb – essentially a non-woody perennial that lacks the thick, secondary growth you’d find in shrubs or trees. Instead, it maintains its delicate appearance year after year, emerging fresh each spring from underground growing points.

Where Does It Naturally Grow?

Aleutian maidenhair has an impressive native range across North America. You’ll find it naturally growing in Alaska, throughout much of Canada, and in many states across the continental United States. Its distribution includes Alaska, Alberta, British Columbia, Quebec, and states from Arizona and California in the west to Maine, Vermont, and Pennsylvania in the east, with populations scattered across the mountain regions of Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, and Wyoming.

Perfect Spots for Your Garden

This versatile fern adapts well to various garden settings, making it a fantastic choice for:

  • Woodland and shade gardens where it can mirror its natural forest habitat
  • Rock gardens, especially in cooler, shadier sections
  • Naturalized areas where you want to establish native plant communities
  • As an elegant groundcover in areas that receive dappled or full shade

The fern’s delicate, fan-shaped fronds create beautiful texture contrasts when planted alongside broader-leafed shade plants, and its airy appearance prevents it from overwhelming smaller companion plants.

Growing Conditions and Care

Aleutian maidenhair thrives in conditions that mimic its natural woodland habitat. Here’s what it needs to flourish:

Light: Partial to full shade is essential. This fern will struggle in direct sunlight, especially hot afternoon sun.

Soil: Well-draining soil that retains some moisture is ideal. It appreciates organic-rich soils and can handle rocky conditions, reflecting its natural growing preferences.

Water: Consistent moisture is key, but avoid waterlogged conditions. The plant’s wetland status varies by region – it can handle both wet and dry conditions but generally prefers the middle ground.

Climate: Hardy across a wide range of zones, generally thriving in USDA zones 2-8 depending on your specific location.

Planting and Care Tips

Getting your Aleutian maidenhair established is relatively straightforward:

  • Plant in spring when the soil is workable and temperatures are moderate
  • Space plants appropriately to allow for their mature spread
  • Apply a layer of organic mulch to help retain soil moisture and regulate temperature
  • Water regularly during the first growing season to help establish strong roots
  • Divide established clumps every few years to maintain vigor and create new plants
  • Remove old fronds in late fall or early spring to make way for new growth

Wildlife and Ecosystem Benefits

While Aleutian maidenhair doesn’t produce the showy flowers that attract pollinators like bees and butterflies, it still plays important roles in native ecosystems. Ferns provide shelter and habitat for small wildlife, and their presence helps maintain the complex understory ecosystem that many native plants and animals depend on.

As a native species, planting Aleutian maidenhair supports biodiversity and helps preserve the genetic diversity of local plant communities. It’s also an excellent choice for gardeners interested in creating authentic regional landscapes.

Is Aleutian Maidenhair Right for Your Garden?

This native fern is an excellent choice if you have shaded garden areas that need some delicate texture and natural beauty. Its wide native range means it’s likely well-adapted to your local growing conditions if you live within its natural distribution area.

Consider Aleutian maidenhair if you’re creating a native plant garden, establishing a woodland landscape, or simply want a low-maintenance perennial that brings four-season interest to shaded spaces. Its graceful form and reliable performance make it a wonderful addition to any shade garden focused on native plants.

Just remember to provide the consistent moisture and shade it craves, and you’ll be rewarded with years of delicate, dancing fronds that capture the essence of North American woodlands right in your own backyard.

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

Alaska

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Arid West

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Atlantic and Gulf Coastal Plain

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Eastern Mountains and Piedmont

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Great Plains

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Northcentral & Northeast

FACU

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

Western Mountains, Valleys, and Coast

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Aleutian Maidenhair

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Pteridaceae E.D.M. Kirchn. - Maidenhair Fern family

Genus

Adiantum L. - maidenhair fern

Species

Adiantum aleuticum (Rupr.) Paris - Aleutian maidenhair

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