North America Native Plant

Narrow Strapfern

Botanical name: Campyloneurum angustifolium

USDA symbol: CAAN9

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states âš˜ Native to Puerto Rico  

Synonyms: Polypodium angustifolium Sw. (POAN13)   

Narrow Strapfern: A Native Gem for Shade Gardens If you’re looking to add some tropical flair to your shade garden while supporting native ecosystems, meet the narrow strapfern (Campyloneurum angustifolium). This elegant native fern brings a touch of the wild to cultivated spaces with its distinctive strap-like fronds and versatile ...

Narrow Strapfern: A Native Gem for Shade Gardens

If you’re looking to add some tropical flair to your shade garden while supporting native ecosystems, meet the narrow strapfern (Campyloneurum angustifolium). This elegant native fern brings a touch of the wild to cultivated spaces with its distinctive strap-like fronds and versatile growing habits.

What Makes Narrow Strapfern Special?

The narrow strapfern is a true Florida native that also calls Puerto Rico home. Unlike many ferns that form typical feathery fronds, this species produces simple, narrow, strap-shaped leaves that create a unique architectural element in the garden. Its botanical name Campyloneurum angustifolium literally refers to its curved veins and narrow leaves – pretty fitting for such a distinctive plant!

You might also see this fern listed under its scientific synonym Polypodium angustifolium in older references, but don’t let that confuse you – it’s the same wonderful plant.

Where Does It Grow Naturally?

This perennial fern is native to Florida and Puerto Rico, where it thrives in the warm, humid conditions of subtropical and tropical regions. In its natural habitat, you’ll often find it growing as an epiphyte on tree trunks and branches, or nestled among rocks in shaded areas.

Why Grow Narrow Strapfern?

There are several compelling reasons to consider adding this native beauty to your landscape:

  • Native plant benefits: Supporting local ecosystems and wildlife
  • Low maintenance: Once established, it’s quite drought tolerant
  • Unique appearance: The strap-like fronds offer a different texture from typical ferns
  • Versatile growing options: Can grow in soil or as an epiphyte
  • Year-round interest: Evergreen in suitable climates

Perfect Garden Situations

Narrow strapfern shines in several landscape applications:

  • Tropical and subtropical gardens: Adds authentic native character
  • Shade gardens: Thrives where many other plants struggle
  • Rock gardens: Can grow in crevices and on stone surfaces
  • Naturalistic plantings: Perfect for recreating wild Florida landscapes
  • Container gardens: Excellent for pots and hanging baskets

Growing Conditions and Care

The narrow strapfern is surprisingly adaptable, but it does have some preferences:

Climate: Best suited for USDA hardiness zones 9-11, where it can remain evergreen year-round.

Light: Prefers shade to partial shade – think dappled sunlight under tree canopies rather than deep, dark corners.

Soil: Well-draining soil is essential. It can handle various soil types but really dislikes sitting in waterlogged conditions.

Moisture: Moderate moisture needs. While it appreciates regular water during establishment, mature plants are quite drought tolerant.

Special growing note: This fern can grow epiphytically, meaning you can attach it to tree trunks or mount it on pieces of bark for a truly naturalistic look!

Planting and Care Tips

Getting your narrow strapfern established is relatively straightforward:

  • Planting: Choose a shaded location with good air circulation
  • Soil preparation: Ensure excellent drainage – add organic matter if your soil is heavy clay
  • Watering: Keep consistently moist during the first growing season, then reduce frequency
  • Fertilizing: Generally not necessary; this fern is adapted to nutrient-poor conditions
  • Maintenance: Remove old, damaged fronds as needed to keep plants looking tidy

Wildlife and Ecosystem Benefits

As a native plant, narrow strapfern contributes to local ecosystems in ways that non-native alternatives simply can’t match. While ferns don’t produce flowers for pollinators, they provide habitat structure and contribute to the complex web of native plant communities that support local wildlife.

Is Narrow Strapfern Right for Your Garden?

This native fern is an excellent choice if you’re gardening in zones 9-11 and want to add native character to shaded areas. Its unique appearance and low-maintenance nature make it particularly appealing for gardeners who appreciate plants with personality. However, if you’re outside its hardiness range, you might need to grow it as a houseplant or look for cold-hardy native fern alternatives for your region.

The narrow strapfern proves that native plants can be both ecologically beneficial and garden-worthy. Its distinctive appearance and adaptable growing habits make it a standout choice for anyone looking to create beautiful, sustainable landscapes with authentic regional character.

Narrow Strapfern

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Polypodiaceae J. Presl & C. Presl - Polypody family

Genus

Campyloneurum C. Presl - strapfern

Species

Campyloneurum angustifolium (Sw.) Fée - narrow strapfern

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