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Fragile Rockbrake

Cryptogramma stelleri

Last reviewed: June 2026

Fragile Rockbrake (Cryptogramma stelleri)
Photo: Ayotte, Gilles, 1948- / Wikimedia Commons (CC BY-SA 4.0)

Light

part shade

Water

medium

Size

4"–12" H × 4"–12" W

Bloom

N/A

Native to

CO, CT, IA, IL and 17 more states

Fragile rockbrake is a delicate native fern that forms small clumps in shaded areas. This compact fern has fine-textured fronds that die back in winter and emerge fresh each spring.

In an HOA neighborhood

Fragile Rockbrake 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.

  • Very small size may appear sparse in formal landscapes
  • Completely disappears in winter leaving bare soil
  • Delicate appearance may look unintentional or weedy

Wildlife value

As a fern, this plant does not support pollinators but provides shelter for small wildlife and adds to native plant diversity in shaded garden areas.

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.

Does Fragile Rockbrake fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.