North America Native Plant

Oregon Cliff Fern

Botanical name: Woodsia oregana oregana

USDA symbol: WOORO

Life cycle: perennial

Habit: forb

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

Oregon Cliff Fern: A Delicate Mountain Native for Your Garden Meet the Oregon cliff fern (Woodsia oregana oregana), a charming little native that proves big things really do come in small packages! This petite perennial fern might not be the showiest plant in your garden, but it brings a special ...

Oregon Cliff Fern: A Delicate Mountain Native for Your Garden

Meet the Oregon cliff fern (Woodsia oregana oregana), a charming little native that proves big things really do come in small packages! This petite perennial fern might not be the showiest plant in your garden, but it brings a special kind of understated elegance that’s hard to beat.

What Makes Oregon Cliff Fern Special?

Don’t let the name fool you – while this fern does love cliffy, rocky spots, it’s not just found hanging off precarious ledges in Oregon. This native beauty actually calls much of western North America home, thriving in the mountainous regions where many gardeners struggle to find suitable plants.

The Oregon cliff fern is a true native gem, naturally occurring across an impressive range that includes Alberta, British Columbia, California, Saskatchewan, Idaho, Montana, Nevada, Oregon, Utah, Washington, and Wyoming. Talk about a well-traveled plant!

Garden Appeal and Design Role

What this fern lacks in size, it more than makes up for in character. The Oregon cliff fern typically grows in small, neat clumps with delicately divided fronds that create beautiful textural contrast in the garden. Its fine, lacy appearance makes it perfect for:

  • Rock gardens where it can nestle naturally between stones
  • Alpine and mountain-themed landscapes
  • Native plant gardens showcasing regional flora
  • Shaded areas that need a touch of delicate greenery

Growing Conditions and Care

Here’s where the Oregon cliff fern shows its mountain heritage – it’s surprisingly tough despite its delicate appearance. This little survivor thrives in USDA hardiness zones 3-8, handling both cold winters and moderate summers with grace.

The key to success with Oregon cliff fern is thinking like a mountain: excellent drainage is absolutely essential. In nature, this fern grows in rocky crevices where water drains away quickly, so soggy garden soil is its biggest enemy.

Planting and Care Tips

  • Choose a spot with partial shade – morning sun is fine, but protect it from harsh afternoon heat
  • Ensure excellent drainage by amending heavy soils with coarse sand or fine gravel
  • Plant in spring after the last frost danger has passed
  • Water regularly the first season to establish roots, then reduce watering
  • Once established, it’s quite drought-tolerant and low-maintenance
  • No fertilizer needed – this fern prefers lean conditions

Wildlife and Ecosystem Benefits

While ferns don’t produce the flashy flowers that attract pollinators, the Oregon cliff fern still plays an important ecological role. Its small stature and dense growth provide shelter for beneficial insects and small creatures. Plus, as a native species, it supports the local ecosystem in ways that non-native plants simply can’t match.

Is Oregon Cliff Fern Right for Your Garden?

This fern is perfect for gardeners who appreciate subtle beauty and want to support native ecosystems. It’s especially valuable if you have challenging rocky or sloped areas where other plants struggle. The Oregon cliff fern won’t dominate your landscape, but it will add that special touch of authentic regional character that makes a garden feel truly connected to its place.

Just remember – this isn’t a fern for heavy, wet soils or deep shade. Give it the rocky, well-draining conditions it craves, and you’ll be rewarded with a charming native that practically takes care of itself once established.

Oregon 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 oregana D.C. Eaton - Oregon 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