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Appalachian fir-moss

Huperzia appalachiana

Last reviewed: October 2026

Appalachian fir-moss (Huperzia appalachiana)
Photo: (c) er-birds, some rights reserved (CC BY)

Toxicity unknown

Appalachian fir-moss (Huperzia appalachiana) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

medium

Size

2"–4" H × 2"–6" W

Bloom

N/A

Native to

GA, MA, ME, MI and 9 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 458 programs across 44 states, each with a link to the provider and the date we last checked it.

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Picture natives in your own yard

Upload a photo of your yard and Patch Vision shows a rendering of it planted with natives for your region, like Appalachian fir-moss.

Appalachian fir-moss is a tiny evergreen clubmoss with clustered, upright, bottle-brush shoots only a few inches tall. It grows on damp, acidic rock in exposed places such as high summits, cliffs and talus, rooted in moss or a thin skin of soil. It spreads by spores and by small plantlets shed from the shoot tips, and it is a plant of wild rock outcrops rather than garden beds.

In an HOA neighborhood

Appalachian fir-moss 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.

  • Specialist of exposed high-elevation rock; not suited to ordinary garden beds

Wildlife value

A spore-bearing plant with no flowers, so it offers no nectar or pollen. Its low cushions add cover for small invertebrates on bare rock.

Common questions

How much sun does Appalachian fir-moss need?
Appalachian fir-moss grows best in full sun conditions.
Where is Appalachian fir-moss native?
Appalachian fir-moss (Huperzia appalachiana) is native to GA, MA, ME, MI and 9 more states, per the World Checklist of Vascular Plants (Kew).
Is Appalachian fir-moss HOA-friendly?
Appalachian fir-moss takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Appalachian fir-moss? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.