Zone 2 -50º to -40ºF
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| Family name | Latin name | English name | ||
| hardy ferns | ||||
| Aspidiaceae | Dryopteris | carthusiana | Narrow Buckler fern | |
| Aspidiaceae | Dryopteris | marginalis | Eastern Wood fern | |
| Aspleniaceae | Asplenium | trichomanes | Maidenhair spleenwort | |
| Aspleniaceae | Asplenium | trichomanes "Cristatum" | Maidenhair spleenwort | |
| Athyriaceae | Cystopteris | fragilis | Brittle Bladder fern | |
| Athyriaceae | Matteuccia | struthiopteris | Ostrich fern | |
| Athyriaceae | Onoclea | sensibilis | Sensitive fern | |
| Osmundaceae | Osmunda | cinnamomea | Cinnamon fern | |
| Osmundaceae | Osmunda | claytoniana | Interrupted fern | |
| Osmundaceae | Osmunda | regalis | European Royal fern | |
| Osmundaceae | Osmunda | regalis "Purpurescens" | Purple Royal fern | |
| Osmundaceae | Osmunda | regalis "Cristata" | Crested Royal fern | |
| Thelypteridaceae | Thelypteris | palustris | Marsh fern | |
| Woodsiaceae | Woodsia | ilvensis | Rusty Woodsia |