North America Native Plant

Lemmon’s Hollyfern

Botanical name: Polystichum lemmonii

USDA symbol: POLE5

Life cycle: perennial

Habit: forb

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

Synonyms: Polystichum mohrioides auct. non (Bory) C. Presl (POMO9)   

Lemmon’s Hollyfern: A Pacific Northwest Native That Brings Year-Round Beauty to Shady Spots If you’ve ever wandered through the misty forests of the Pacific Northwest and admired those gorgeous, glossy ferns carpeting the forest floor, you might have encountered Lemmon’s hollyfern (Polystichum lemmonii). This charming native fern is like nature’s ...

Lemmon’s Hollyfern: A Pacific Northwest Native That Brings Year-Round Beauty to Shady Spots

If you’ve ever wandered through the misty forests of the Pacific Northwest and admired those gorgeous, glossy ferns carpeting the forest floor, you might have encountered Lemmon’s hollyfern (Polystichum lemmonii). This charming native fern is like nature’s answer to the question: What if holly leaves grew on a fern? The result is absolutely delightful.

What Exactly Is Lemmon’s Hollyfern?

Lemmon’s hollyfern is a perennial fern that’s native to the western regions of North America. You’ll find this beauty naturally growing in British Columbia, California, Idaho, Oregon, and Washington. It’s also sometimes known by the synonym Polystichum mohrioides, though that name can cause some confusion with other species.

What makes this fern special is its distinctive appearance. The fronds are evergreen, meaning they stay attractive throughout the year, and they’re divided into leaflets that look remarkably similar to holly leaves – hence the hollyfern common name. These leaflets have those characteristic spiny edges that give the plant its unique texture and visual appeal.

Why Your Garden Will Love This Fern

Lemmon’s hollyfern brings several wonderful qualities to a garden setting:

  • Evergreen foliage provides year-round structure and color
  • Thrives in challenging shady areas where other plants struggle
  • Low maintenance once established
  • Adds texture and depth to woodland gardens
  • Excellent for naturalizing in native plant gardens

While this fern doesn’t produce flowers to attract pollinators (ferns reproduce via spores, not flowers), it does contribute to the overall ecosystem health of a garden by providing habitat structure and supporting the complex web of forest floor life.

How to Identify Lemmon’s Hollyfern

Spotting Lemmon’s hollyfern in the wild or distinguishing it from other ferns is fairly straightforward once you know what to look for:

  • Fronds are typically 6-18 inches long and have that distinctive holly-like appearance
  • Leaflets are glossy, dark green, and have sharp, spiny margins
  • The overall plant forms attractive clumps
  • Spore cases (sori) appear as round, brown dots on the undersides of fertile fronds
  • Grows naturally in rocky, shaded areas of coniferous forests

Is This Fern Right for Your Garden?

Lemmon’s hollyfern is an excellent choice for gardeners in USDA hardiness zones 5-8 who want to create authentic Pacific Northwest woodland gardens. It’s particularly valuable for:

  • Shade gardens that need year-round interest
  • Rock gardens with good drainage
  • Native plant landscaping projects
  • Areas where you want low-maintenance groundcover

This fern prefers partial to full shade and moist, well-draining soil. It’s not fond of hot, dry conditions or heavy clay that stays waterlogged. If you can mimic its natural forest habitat – think dappled shade, organic-rich soil, and consistent moisture – you’ll likely have success with this lovely native.

Growing Tips for Success

While Lemmon’s hollyfern is relatively easy-going, following these tips will help ensure your plants thrive:

  • Plant in spring when temperatures are cool and moisture is abundant
  • Choose a location with morning sun and afternoon shade, or dappled light throughout the day
  • Improve heavy clay soils with compost or other organic matter
  • Mulch around plants to help retain moisture and suppress weeds
  • Remove old, damaged fronds in late winter to make way for new growth
  • Water regularly during the first growing season to establish roots

Remember, as a native species, Lemmon’s hollyfern has co-evolved with local conditions and wildlife. When you choose native plants like this one, you’re supporting local ecosystems while creating a beautiful, sustainable garden that works in harmony with nature rather than against it.

Lemmon’s Hollyfern

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

Polystichum Roth - hollyfern

Species

Polystichum lemmonii Underw. - Lemmon's hollyfern

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