North America Native Plant

Mouse-ear Chickweed

Botanical name: Cerastium bialynickii

USDA symbol: CEBI7

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to Greenland  

Synonyms: Cerastium arcticum Lange var. sordidum Hultén (CEARS4)   

Mouse-Ear Chickweed: An Arctic Native That’s Not for Your Backyard If you’ve stumbled across the name mouse-ear chickweed (Cerastium bialynickii) while researching native plants, you might be wondering if this little Arctic gem belongs in your garden. Well, here’s the short answer: probably not! But that doesn’t make this fascinating ...

Mouse-Ear Chickweed: An Arctic Native That’s Not for Your Backyard

If you’ve stumbled across the name mouse-ear chickweed (Cerastium bialynickii) while researching native plants, you might be wondering if this little Arctic gem belongs in your garden. Well, here’s the short answer: probably not! But that doesn’t make this fascinating plant any less interesting.

What Exactly Is Mouse-Ear Chickweed?

Mouse-ear chickweed is a perennial forb native to some of the most remote and frigid places on Earth. This hardy little survivor calls the Arctic regions of Canada and Greenland home, specifically thriving in the Northwest Territories and Nunavut. As a forb, it’s an herbaceous plant without woody stems – think of it as nature’s way of saying low and simple works best in harsh Arctic conditions.

This species is found exclusively in the Canadian Arctic territories and Greenland, making it one of those plants that truly embodies the phrase specialized for extreme conditions.

Why This Arctic Native Isn’t Garden Material

Here’s the thing about Cerastium bialynickii – it’s evolved for life in the Arctic, and your garden (unless you happen to live in Nunavut) simply can’t replicate those conditions. This plant has spent millennia adapting to:

  • Extreme cold temperatures
  • Short growing seasons
  • Permafrost conditions
  • Intense seasonal light variations
  • Harsh Arctic winds

Even if you live in the coldest USDA hardiness zones, the specific combination of factors this plant needs makes it virtually impossible to cultivate in typical garden settings.

The Ecological Importance of Arctic Specialists

While you can’t grow mouse-ear chickweed in your backyard, it plays a crucial role in its native Arctic ecosystem. Plants like this one are perfectly adapted to their harsh environment and contribute to the delicate balance of Arctic flora. They’re part of the ground-hugging plant communities that help prevent soil erosion in permafrost regions and provide habitat structure in landscapes where few plants can survive.

Better Native Alternatives for Your Garden

Instead of trying to grow this Arctic specialist, consider these more garden-friendly native alternatives that can give you that low-growing, hardy plant appeal:

  • Wild strawberry (Fragaria virginiana) for groundcover
  • Creeping phlox (Phlox subulata) for rock gardens
  • Native sedums for dry, rocky areas
  • Regional native grasses for naturalized areas

Respecting Arctic Endemics

Plants like Cerastium bialynickii remind us that not every native species is meant for cultivation. These Arctic specialists have evolved over thousands of years to thrive in conditions most gardeners would consider absolutely impossible. Rather than trying to force them into our temperate gardens, we can appreciate them for what they are – remarkable survivors in some of Earth’s most challenging environments.

If you’re passionate about supporting Arctic biodiversity, consider donating to organizations that protect Arctic habitats instead of attempting to grow these specialized plants outside their native range.

Mouse-ear Chickweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Caryophyllaceae Juss. - Pink family

Genus

Cerastium L. - mouse-ear chickweed

Species

Cerastium bialynickii Tolm. - mouse-ear chickweed

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA