North America Native Plant

Greenland Northern Rockcress

Botanical name: Braya thorildwulffii glabrata

USDA symbol: BRTHG

Life cycle: perennial

Habit: forb

Native status: Native to Canada  

Greenland Northern Rockcress: An Arctic Survivor You’ll Probably Never Grow Meet Greenland northern rockcress (Braya thorildwulffii glabrata), one of nature’s most specialized survivors that calls the frozen landscapes of Canada’s far north home. This perennial plant might not be showing up in your local garden center anytime soon – and ...

Greenland Northern Rockcress: An Arctic Survivor You’ll Probably Never Grow

Meet Greenland northern rockcress (Braya thorildwulffii glabrata), one of nature’s most specialized survivors that calls the frozen landscapes of Canada’s far north home. This perennial plant might not be showing up in your local garden center anytime soon – and for good reason!

Where Does Greenland Northern Rockcress Call Home?

This hardy perennial is native to Canada, specifically thriving in the Northwest Territories and Nunavut. We’re talking about some of the most remote and challenging growing conditions on the planet, where summer might last just a few weeks and winter temperatures can plummet to bone-chilling extremes.

Why You Won’t Find This in Your Garden (And That’s Okay!)

Before you start wondering where to buy seeds, let’s have a reality check. Greenland northern rockcress has evolved to survive in conditions that would make a polar bear reach for a sweater. This plant is adapted to:

  • Extremely short growing seasons
  • Permafrost conditions
  • Intense UV radiation from snow reflection
  • Constant wind exposure
  • Minimal soil development

Unless you’re gardening in the Arctic tundra, this plant simply won’t survive in typical garden conditions. It’s like trying to keep a penguin as a house pet – theoretically possible, but not exactly practical or ethical.

The Importance of Arctic Plants

While you can’t grow Greenland northern rockcress in your backyard, it plays a crucial role in its native ecosystem. Arctic plants like this one are important for:

  • Preventing soil erosion in fragile tundra environments
  • Supporting specialized Arctic wildlife
  • Contributing to the unique biodiversity of northern ecosystems
  • Helping scientists understand plant adaptation to extreme conditions

What Can You Grow Instead?

If you’re fascinated by hardy, cold-tolerant plants that can handle tough conditions, consider these native alternatives that might actually thrive in your climate:

  • Alpine plants native to your region
  • Cold-hardy wildflowers like purple coneflower or black-eyed Susan
  • Native grasses that can handle temperature extremes
  • Rock garden plants adapted to your local conditions

The best approach is always to choose plants that are naturally adapted to your specific growing conditions and native to your region.

Appreciating Plants in Their Natural Habitat

Sometimes the most beautiful thing about a plant is simply knowing it exists, thriving in its perfect natural environment. Greenland northern rockcress reminds us that nature is incredibly diverse and adaptable, even if we can’t bring every amazing species into our own gardens.

If you’re ever lucky enough to visit the Canadian Arctic, keep an eye out for this remarkable survivor. Until then, let’s focus on supporting the native plants that can actually flourish in our own backyards while appreciating the incredible diversity of plant life across our planet.

Greenland Northern Rockcress

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Capparales

Family

Brassicaceae Burnett - Mustard family

Genus

Braya Sternb. & Hoppe - northern-rockcress

Species

Braya thorild-wulffii Ostenf. - Greenland northern rockcress

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