Crested woodfern occupies some of the wettest ground in the temperate garden, finding its footing in the swampy woods and wet margins of Canada, the United States, Europe, and Asia. In North Carolina it appears in the cooler regions of the state, growing in moist to wet, fertile, acidic soils under a shade canopy. The plant produces two distinct types of frond. Sterile fronds are arching and evergreen, persisting through winter and providing quiet structure when little else is growing. Fertile fronds grow taller and more upright, somewhat narrowed and twisted to display the sori, then die back by winter's end. The sori themselves are round to kidney-shaped and brown, arranged on the undersides of the fertile pinnae in a pattern that reads as crested in profile.

In garden use, crested woodfern is a natural for rain gardens, streambanks, and pond edges, anywhere that the soil stays reliably moist. It spreads gradually by creeping rhizomes, filling in over time without becoming invasive, and can be propagated by spore or division. It is hardy to zone 3 and deer-resistant, which expands its practical range considerably. Try it in groups along the margins of a shade garden or in naturalized plantings where its quiet, long-season presence can be appreciated without demanding attention.