North America Native Plant

Cliff Fern

Botanical name: Woodsia ×abbeae

USDA symbol: WOAB

Life cycle: perennial

Habit: forb

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

Synonyms: Woodsia confusa T.M.C. Taylor (WOCO3)  âš˜  Woodsia oregana D.C. Eaton var. squammosa B. Boivin (WOORS)   

Cliff Fern: A Delicate Native Beauty for Rocky Gardens Meet the cliff fern (Woodsia ×abbeae), a charming little native that’s perfectly content living life on the rocks—literally! This petite perennial fern brings understated elegance to challenging garden spots where many other plants simply won’t thrive. What Makes Cliff Fern Special? ...

Cliff Fern: A Delicate Native Beauty for Rocky Gardens

Meet the cliff fern (Woodsia ×abbeae), a charming little native that’s perfectly content living life on the rocks—literally! This petite perennial fern brings understated elegance to challenging garden spots where many other plants simply won’t thrive.

What Makes Cliff Fern Special?

Don’t let its delicate appearance fool you—cliff fern is a tough little survivor. This native North American species has evolved to make its home in the cracks and crevices of rocky outcrops, making it an excellent choice for gardeners dealing with similar challenging conditions.

You might also encounter this fern listed under its botanical synonyms, including Woodsia confusa or Woodsia oregana var. squammosa, but they’re all referring to the same resilient little plant.

Where Does Cliff Fern Call Home?

Cliff fern is native to both Canada and the lower 48 states, with populations naturally occurring in Ontario, Saskatchewan, Michigan, Minnesota, and Wisconsin. This northern distribution gives you a clue about its preferred growing conditions—it loves cool temperatures and doesn’t mind a bit of winter chill.

Why Choose Cliff Fern for Your Garden?

Here’s where cliff fern really shines in the garden landscape:

  • Perfect for problem spots: Those rocky, shaded areas where nothing else seems to grow? Cliff fern says challenge accepted!
  • Low maintenance: Once established, this hardy native requires minimal care
  • Native plant benefits: Supporting local ecosystems while adding beauty to your landscape
  • Compact size: Forms neat, small clumps that won’t overwhelm your space
  • Cold hardy: Thrives in USDA zones 3-7, making it suitable for northern gardens

Ideal Garden Settings

Cliff fern is tailor-made for:

  • Rock gardens and rocky slopes
  • Woodland gardens with dappled shade
  • Naturalized areas mimicking native habitats
  • Shade gardens with good drainage
  • Alpine or mountain-style landscaping

Growing Cliff Fern Successfully

Light Requirements: Cliff fern prefers partial to full shade. Morning sun with afternoon shade works well, but avoid hot, direct sunlight.

Soil Needs: The key to success is excellent drainage. This fern naturally grows in rocky crevices, so it needs soil that doesn’t stay soggy. A mix of regular garden soil with added sand, gravel, or small rocks works perfectly.

Watering: Once established, cliff fern is quite drought tolerant. Water during dry spells, but avoid overwatering—soggy soil is this fern’s nemesis.

Planting and Care Tips

  • Plant in spring after the last frost
  • Space plants about 12 inches apart to allow for natural spreading
  • Mulch lightly with small stones or gravel rather than organic mulch
  • Remove old fronds in early spring to make way for new growth
  • Divide clumps every 3-4 years if desired, though it’s not necessary

A Note About Ferns and Pollinators

While cliff fern won’t attract butterflies and bees like flowering plants do (ferns reproduce via spores, not flowers), it still contributes to a healthy ecosystem. The small fronds can provide shelter for beneficial insects and small wildlife, and as a native plant, it supports the broader web of life in your garden.

Is Cliff Fern Right for Your Garden?

If you have a shady spot with rocky or well-draining soil and you’re looking for a low-maintenance native plant that adds delicate texture without overwhelming your design, cliff fern might be your perfect match. It’s especially wonderful for gardeners who want to create naturalized spaces that reflect the beauty of native North American landscapes.

Just remember—this isn’t a plant for heavy, clay soils or consistently moist conditions. But give it the rocky, well-draining conditions it craves, and you’ll have a charming, carefree addition to your garden that truly belongs in your local ecosystem.

Cliff Fern

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Dryopteridaceae Herter - Wood Fern family

Genus

Woodsia R. Br. - cliff fern

Species

Woodsia ×abbeae Butters [ilvensis × oregana] - cliff fern

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