North America Native Plant

Smooth Northern-rockcress

Botanical name: Braya glabella prostrata

USDA symbol: BRGLP2

Life cycle: perennial

Habit: forb

Native status: Native to Canada  

Smooth Northern-Rockcress: An Arctic Treasure You Probably Can’t Grow Meet smooth northern-rockcress (Braya glabella prostrata), one of Canada’s most specialized native plants that’s perfectly adapted to life in places where most plants simply can’t survive. If you’re dreaming of adding this hardy perennial to your garden, well… you might want ...

Smooth Northern-Rockcress: An Arctic Treasure You Probably Can’t Grow

Meet smooth northern-rockcress (Braya glabella prostrata), one of Canada’s most specialized native plants that’s perfectly adapted to life in places where most plants simply can’t survive. If you’re dreaming of adding this hardy perennial to your garden, well… you might want to dream of something a bit more achievable instead!

What is Smooth Northern-Rockcress?

This tiny member of the mustard family is a true Arctic survivor. As a low-growing perennial, smooth northern-rockcress hugs the ground in some of the harshest landscapes on Earth. It produces small white flowers that somehow manage to bloom despite the brutal conditions of Canada’s far north.

Where Does It Call Home?

Smooth northern-rockcress is native to Canada, with documented populations in Nunavut. This plant has evolved specifically for Arctic and subarctic environments where permafrost, extreme cold, and short growing seasons are the norm rather than the exception.

Why You Probably Shouldn’t Try Growing It

Here’s the honest truth: unless you live in the Arctic tundra, smooth northern-rockcress isn’t going to work in your garden. This specialized plant requires conditions that are nearly impossible to replicate outside its natural habitat:

  • Extremely cold temperatures year-round
  • Permafrost conditions
  • Specific soil chemistry found in Arctic regions
  • Very short, intense growing seasons
  • USDA hardiness zones 1-2 (and that’s being generous)

Even if you could somehow create these conditions, smooth northern-rockcress isn’t commercially available through typical nursery channels, and for good reason!

Better Native Alternatives for Your Garden

If you’re attracted to the idea of growing hardy native plants that can handle tough conditions, consider these more garden-friendly alternatives:

  • Wild bergamot for prairie-style gardens
  • Canada anemone for groundcover
  • Purple prairie clover for pollinator gardens
  • Wild ginger for shaded woodland areas

Appreciating Arctic Specialists

While you can’t grow smooth northern-rockcress in your backyard, it serves as a fascinating reminder of nature’s incredible adaptability. These Arctic specialists play crucial roles in their ecosystems, helping to stabilize soil and provide habitat in some of Earth’s most challenging environments.

The existence of plants like smooth northern-rockcress highlights why protecting Arctic habitats is so important. These unique ecosystems support plant communities found nowhere else on Earth, perfectly adapted to conditions that would quickly kill most other plants.

The Bottom Line

Smooth northern-rockcress is undoubtedly a remarkable plant, but it’s best admired from afar rather than attempted in cultivation. Instead of trying to force Arctic plants into temperate gardens, focus on selecting native plants that are naturally suited to your specific climate and growing conditions. Your garden (and your sanity) will thank you for it!

Remember: the best native plant for your garden is one that actually wants to grow where you live. Save the Arctic appreciation for your next trip to Nunavut!

Smooth 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 glabella Richardson - smooth 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