Japanese Holly-fern
Cyrtomium falcatum
Found in loess bluffs, calcareous outcrops, ditches, disturbed swamps, moist ravines, old mortar of brick or stone walls. FloraQuest, phone app (app page) What its natural habitat tells you
Not native to Florida. How scores work Is it native here?
Profile 82%
- Height
- 17–24 inches
- Spread
- 2–3 feet
- Light
- Dappled sunlight, Deep shade, Partial shade
- Soil moisture
- Usually moist
Plant this instead
Choose your county to list local plants first.
No recorded swaps for this county. Try the garden finder.
At a glance
- Life cycle
- Perennial
- Leaves
- Deciduous
- Bloom
- June to October
Recorded in 17 Florida counties.
Natural habitats
Places it grows wild. Not a planting requirement.
Glades, barrens and outcrops on limestone
Habitats
Glades, barrens and outcrops on limestone; roadsides, fields and disturbed ground; swamps; moist forests.
Each habitat page lists the plants and wildlife also found there. All habitats
Who uses this plant?
5CaterpillarsGenus host records with ranges including FL
Genus host records with ranges including FL · Polystichum
- Callopistria floridensisFlorida Fern Caterpillar
- Decantha boreasellaReticulated Decantha Moth
- Herpetogramma aeglealisSerpentine Webworm
- Phlogophora periculosaBrown Angle Shades
- Herpetogramma sphingealis
—BeesSoutheastern regional records
—Specialist beesPollen specialists
2BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Polystichum
- Bonasa umbellusRuffed Grouse
- Lagopus lagopusWillow Ptarmigan
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
Plant details
- Family
- Dryopteridaceae
- Hardiness
- Zones 7a–10b
- Soil pH
- Acidic to alkaline
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “June to October” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
- Hardiness · “Zones 7a–10b” · NC Extension Plant Toolbox
- Height · “17–24 inches” · NC Extension Plant Toolbox
- Leaves · “Deciduous” · NC Extension Plant Toolbox
- Life cycle · “Perennial” · NC Extension Plant Toolbox
- Light · “Dappled sunlight (shade through upper canopy all day); Deep shade (less than 2 hours to no direct sunlight); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox
- Soil · “Moist” · NC Extension Plant Toolbox
- Soil pH · “Acidic to alkaline” · NC Extension Plant Toolbox
- Spread · “2–3 feet” · NC Extension Plant Toolbox
Also known as
Japanese Holly fern; Polystichum falcatum; fern
Conservation status
| Florida rank | SNA |
|---|---|
| Global rank | GNR |
| FL status | Not verified |
| Federal status | Not verified |
Sources
- Atlas of Florida Plants
- USDA PLANTS
- NatureServe Explorer
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications