North America Native Plant

Goldback Fern

Botanical name: Pentagramma triangularis

USDA symbol: PETR7

Life cycle: perennial

Habit: forb

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

Goldback Fern: A Golden Treasure for Your Shade Garden If you’ve ever stumbled upon a small fern with fronds that shimmer like they’ve been dusted with gold, you’ve likely encountered the delightful goldback fern (Pentagramma triangularis). This charming native fern brings a touch of magic to Western gardens with its ...

Goldback Fern: A Golden Treasure for Your Shade Garden

If you’ve ever stumbled upon a small fern with fronds that shimmer like they’ve been dusted with gold, you’ve likely encountered the delightful goldback fern (Pentagramma triangularis). This charming native fern brings a touch of magic to Western gardens with its distinctive golden-yellow undersides that seem to glow in dappled shade.

What Makes Goldback Fern Special

The goldback fern is a true gem among native plants, earning its common name from the waxy, golden-yellow coating called farina that covers the undersides of its triangular fronds. This perennial fern typically grows 4-12 inches tall and wide, forming neat little clumps that look like nature’s own golden medallions scattered across the forest floor.

Unlike many ferns that prefer consistently moist conditions, this hardy little plant has adapted to drier climates, making it perfect for gardeners who want the delicate beauty of ferns without the constant watering requirements.

Where Goldback Fern Calls Home

This native beauty spans an impressive range across western North America, naturally occurring from British Columbia down through Arizona, California, Idaho, Nevada, New Mexico, Oregon, Utah, and Washington. Its widespread distribution speaks to its adaptability and resilience.

Why Your Garden Will Love Goldback Fern

Goldback fern is the answer to many gardeners’ prayers for that tricky dry shade spot. Here’s why it deserves a place in your landscape:

  • Low maintenance: Once established, it requires minimal care and is quite drought tolerant
  • Unique beauty: Those golden undersides create stunning visual interest, especially when backlit
  • Native credentials: Supports local ecosystems and requires no supplemental resources once established
  • Compact size: Perfect for small spaces, rock gardens, or as a delicate ground cover
  • Year-round interest: Evergreen in milder climates, providing structure even in winter

Perfect Garden Companions

Goldback fern thrives in USDA hardiness zones 8-10 and shines brightest in native plant gardens, xeric landscapes, and rock gardens. It’s particularly stunning when planted alongside other drought-tolerant natives like:

  • California fuchsia
  • Heuchera species
  • Native sedges
  • Manzanita shrubs

Growing Goldback Fern Successfully

The secret to happy goldback ferns lies in mimicking their natural habitat. They prefer:

  • Light conditions: Partial to full shade (morning sun is okay, but avoid harsh afternoon sun)
  • Soil requirements: Well-draining soil is absolutely essential – they hate wet feet
  • Water needs: Drought tolerant once established, but appreciates occasional deep watering during extreme dry spells
  • Placement: Rock crevices, slopes, or raised beds that provide excellent drainage

Caring for Your Golden Treasure

One of the goldback fern’s greatest charms is its low-maintenance nature. Simply remove any dead fronds in late winter or early spring, and ensure good drainage year-round. Avoid overhead watering, which can wash away the beautiful golden farina that gives this fern its distinctive appearance.

Wildlife Value

While goldback fern doesn’t offer nectar like flowering plants, it provides subtle benefits to garden ecosystems by offering shelter for small insects and contributing to the overall biodiversity that makes native plant gardens so valuable.

The Bottom Line

Goldback fern is a perfect choice for gardeners seeking a low-maintenance, drought-tolerant fern that brings unique beauty to challenging dry shade areas. Its native status means it’s perfectly adapted to local conditions, and its golden-backed fronds add a touch of magic that few other plants can match. If you have a spot that gets morning sun and afternoon shade with good drainage, goldback fern might just become your new favorite garden companion.

Goldback Fern

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

Pentagramma Yatsk., Windham & E. Wollenw. - goldback fern

Species

Pentagramma triangularis (Kaulf.) Yatsk., Windham & E. Wollenw. - goldback fern

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