When does Bracken Fern reproduce?

Bracken Fern reproduces via spores rather than flowers, typically releasing spores from mid to late summer when sori (spore clusters) mature on the undersides of fronds.

Where is Pteridium aquilinum native?

Bracken Fern is native throughout most of North America, including Vermont, and is found on every continent except Antarctica. It has one of the widest distributions of any fern species.

What growing conditions does Bracken Fern prefer?

Bracken Fern is highly adaptable, tolerating a wide range of light conditions from partial sun to full shade and various moisture levels from wet to relatively dry soils.

Is Bracken toxic to livestock?

Bracken is listed as toxic to grazing livestock such as cattle, sheep, and goats (slight severity) by the USDA PLANTS Database. This is separate from pet (dog and cat) toxicity.

Is Bracken HOA-friendly?

Bracken takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Bracken

Name: Pollinator Patch
Author: Pollinator Patch

Pteridium aquilinum

Last reviewed: July 2026

Pteridium aquilinum (Bracken Fern) is a widespread deciduous fern native to Vermont and much of North America. This adaptable species thrives in various light conditions from partial sun to shade.

Bracken (Pteridium aquilinum) — Photo: (c) Timothy McNitt, some rights reserved (CC BY), uploaded by Timothy McNitt

Bracken is listed as toxic to grazing livestock (cattle, sheep, and goats) at a slight level by the USDA PLANTS Database (opens in new tab). This is a livestock indicator and is separate from pet toxicity.

Light

part shade

Water

medium

Size

24"–72" H × 24"–72" W

Bloom

N/A

Native to

AL, AR, CA, CO and 40 more states

Browse plants for this ecoregion

Coast Range Sierra Nevada Central California Valley Southern California Mountains Central Basin and Range Chihuahuan Deserts East Central Texas Plains Western Gulf Coastal Plain South Central Plains Sonoran Basin and Range

Bracken is a large, aggressive fern that spreads rapidly through underground rhizomes to form dense colonies. It has distinctive triangular fronds that can grow quite tall and turn golden-brown in fall before dying back completely in winter.

Growing Bracken

Grow Bracken in part shade and medium water. Mature plants reach 24 to 72 inches tall and spread 24 to 72 inches wide. Expect high maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Bracken takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Spreads aggressively and can take over large areas
Looks completely bare and messy in winter
Considered weedy and invasive in appearance

Wildlife value

While bracken provides shelter for small wildlife, it offers limited value to pollinators since it does not flower. Its dense growth can crowd out more beneficial native plants.

Common questions

When does Bracken Fern reproduce?: Bracken Fern reproduces via spores rather than flowers, typically releasing spores from mid to late summer when sori (spore clusters) mature on the undersides of fronds.
Where is Pteridium aquilinum native?: Bracken Fern is native throughout most of North America, including Vermont, and is found on every continent except Antarctica. It has one of the widest distributions of any fern species.
What growing conditions does Bracken Fern prefer?: Bracken Fern is highly adaptable, tolerating a wide range of light conditions from partial sun to full shade and various moisture levels from wet to relatively dry soils.
Is Bracken toxic to livestock?: Bracken is listed as toxic to grazing livestock such as cattle, sheep, and goats (slight severity) by the USDA PLANTS Database. This is separate from pet (dog and cat) toxicity.
Is Bracken HOA-friendly?: Bracken takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Bracken? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Add this plant to your garden

iPhone app Android app

Not sure where to start? Take the 2-minute yard quiz