Common Oak Fern
Gymnocarpium dryopteris
Last reviewed: August 2026
Gymnocarpium dryopteris (Common Oak Fern) is a delicate deciduous fern native across northern and mountainous regions of North America. This shade-loving species thrives in moist, well-drained soils and does not produce flowers.
Toxicity unknown
Common Oak Fern (Gymnocarpium dryopteris) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
shade
Water
medium
Size
6"–24" H × 12"–36" W
Bloom
N/A
Native to
AZ, CO, CT, IA and 24 more states
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Common oak fern is a delicate, low-growing fern that forms spreading colonies in shaded areas. It produces triangular, light green fronds that create an attractive groundcover texture in woodland gardens. The fronds die back completely in winter, leaving bare ground until spring growth emerges.
Growing Common Oak Fern
Grow Common Oak Fern in shade and medium water. Mature plants reach 6 to 24 inches tall and spread 12 to 36 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Common Oak Fern takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Dies back completely in winter leaving bare patches
- Spreading habit may appear uncontrolled
- Uncommon plant choice may seem unconventional
Wildlife value
As a fern, it does not attract pollinators but provides shelter and habitat for small wildlife like salamanders and insects. The foliage offers cover for ground-dwelling creatures in shaded garden areas.
Common questions
- Does Common Oak Fern produce flowers?
- No, Gymnocarpium dryopteris does not produce flowers or bloom since it is a fern that reproduces through spores rather than seeds.
- What growing conditions does Common Oak Fern prefer?
- Common Oak Fern thrives in partial to full shade with medium to high moisture levels. It naturally grows in cool, moist woodlands and mountain forests.
- Where is Gymnocarpium dryopteris native in the United States?
- Common Oak Fern is native to 29 states including most northern states, mountain regions of the West, and extends into some mid-Atlantic states like Maryland and New Jersey.
- Is Common Oak Fern HOA-friendly?
- Common Oak Fern takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Common Oak Fern? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz