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Northern maidenhair fern

Northern maidenhair fern

Adiantum pedatum
A native fern with one of the most distinctive frond architectures in the plant kingdom: delicate emerald-green fronds borne on black wiry stems arranged in a horizontal pinwheel (palmate) pattern. Mature plants form layered tiers of pinwheels. Deciduous but utterly charming through the growing season. Excellent for damp shade — moist rich woodland soils are the ideal habitat.
Native: 35 US states + 4 CA provinces
Climate fit: broad (87/100)
Filler
Focal point
Light
Part shade
Water
Consistent moisture
Mature size
12-24" tall · 18" apart
Hardy in zones
3a-8b
brutally cold to frosty winters
AHS heat range
1-11
Plant range authored in AHS heat-zone terms.
Native in Illinois
Yes

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Native across 39 US states and Canadian provinces — a wide-ranging part of North America's plant communities.

Cold hardiness

These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
Well-suited today and still thriving in 2050.

Heat tolerance

Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...

Similar plants

Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Sanguinaria canadensis
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A native eastern North American spring ephemeral wildflower with pristine white 8-12-petaled flowers in early spring (often the first major forest-floor wildflower of the year) wrapped by a single rounded glaucous leaf. Disappears by midsummer to underground rhizomes. The red rhizome sap was historically used by Indigenous peoples as a dye and ceremonial paint.
Perennial
Part shade
Consistent moisture
Zones 3a-8b
Climate: broad
Pollinator
Filler
Polystichum acrostichoides
Christmas fern
A native evergreen fern of eastern North America that holds leathery dark green fronds through winter and provides ground-level songbird cover — ideal for shaded woodland slopes and erosion-prone banks.
Perennial
Part shade / Part sun
Moderate water
Zones 3a-9b
Climate: broad
Filler
Structure
Viola sororia
Common blue violet
A low, clump-forming native woodland violet of eastern North America, grown for its early spring blue-to-purple flowers with conspicuous white throats held over glossy, heart-shaped leaves. It does not run, but self-seeds freely — to the point of being weedy in rich, moist ground. A larval host for fritillary butterflies and a nectar source for early bees and butterflies; the leaves are high in vitamins A and C.
Perennial
Full sun / Part sun / Part shade
Consistent moisture
Zones 3a-7b
Climate: broad
Border
Filler
Pollinator
Iris cristata
Dwarf crested iris
A diminutive native woodland iris forming spreading mats of low sword-shaped foliage topped briefly in spring by delicate light-blue flowers with bold yellow + white "crests" running down each fall. One of the most charming native perennials for partly shaded sites. Among the smallest native irises (6-9" tall) — works beautifully as a groundcover under deciduous shrubs + along path edges. ALL parts toxic (typical iris caveat).
Perennial
Part shade
Moderate water
Zones 3a-8b
Climate: broad
Filler
Border
Tiarella cordifolia
Foamflower
A native eastern North American semi-evergreen perennial with heart-shaped foliage and frothy white-to-pink spring flower spikes — among the most reliable native shade groundcovers for woodland gardens. Spreads by stolons in some forms; clumping in others (cultivars selected for both habits).
Perennial
Part shade
Consistent moisture
Zones 3a-8b
Climate: broad
Pollinator
Filler
Spigelia marilandica
Indian pink
A native southeastern US perennial with red-and-yellow tubular flowers in upright clusters — among the most spectacular hummingbird-pollinated native perennials and a top-tier butterfly + pollinator garden plant. Shade-tolerant + clumping; slowly naturalizes by self-seeding in suitable conditions.
Perennial
Full sun / Part shade
Moderate water
Zones 5a-9b
Climate: broad
Pollinator
Border
Focal point

Sources & citations

Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Northern maidenhair fern (Adiantum pedatum). Retrieved 2026, June 24, from https://plotwright.com/plants/adiantum-pedatum
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
NC State Extension Gardener Plant Toolbox
University extension service
Backs 17 fields
Identity
Summary
Plant type
Light
Moisture
Hardiness
Heat zone
Size
Spacing
Habit
Design roles
Seasonal interest
Growth stages
Lifecycle
Regional guidance
Success tips
Designer notes
Wikimedia Commons
Photo · CC BY-SA 4.0
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