Christmas Green
Diphasiastrum complanatum
Last reviewed: August 2026

Toxicity unknown
Christmas Green (Diphasiastrum complanatum) 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
part shade
Water
medium
Size
4"–12" H × 8"–24" W
Bloom
N/A
Native to
AL, CT, DE, GA and 26 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 452 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Christmas green is a low-growing native club moss that forms spreading evergreen mats with distinctive flattened, fan-like branches. This ancient plant provides year-round ground coverage in shaded areas and woodland settings. It spreads slowly by underground runners to create attractive carpets of bright green foliage.
In an HOA neighborhood
Christmas Green 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.
Works well in: backyard only.
- Looks too wild and informal for front yards
- Very slow establishment may appear patchy initially
- Unfamiliar appearance confuses many homeowners
Wildlife value
As a primitive plant, Christmas green does not produce flowers or support pollinators directly. It provides shelter and habitat for small woodland creatures and insects in forest floor ecosystems.
Common questions
- How much sun does Christmas Green need?
- Christmas Green grows best in part shade conditions.
- Where is Christmas Green native?
- Christmas Green (Diphasiastrum complanatum) is native to AL, CT, DE, GA and 26 more states, per the World Checklist of Vascular Plants (Kew).
- Is Christmas Green HOA-friendly?
- Christmas Green 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.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Christmas Green? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Planning a bed around it? Start a free plan with this plant
Not sure where to start? Take the 2-minute yard quiz