North America Native Plant

Ellesmereland Whitlowgrass

Botanical name: Draba subcapitata

USDA symbol: DRSU2

Life cycle: perennial

Habit: forb

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to Greenland  

Ellesmereland Whitlowgrass: An Arctic Jewel for the Brave Gardener If you’re looking for a plant that laughs in the face of winter and makes most cold-hardy perennials look like wimps, meet Ellesmereland whitlowgrass (Draba subcapitata). This tiny Arctic native is about as tough as they come, but it’s definitely not ...

Ellesmereland Whitlowgrass: An Arctic Jewel for the Brave Gardener

If you’re looking for a plant that laughs in the face of winter and makes most cold-hardy perennials look like wimps, meet Ellesmereland whitlowgrass (Draba subcapitata). This tiny Arctic native is about as tough as they come, but it’s definitely not your average garden center find.

What is Ellesmereland Whitlowgrass?

Ellesmereland whitlowgrass is a perennial forb that belongs to the mustard family. Don’t let the grass in its name fool you – this little guy produces clusters of small, bright white flowers with four petals each. It grows as a low, cushion-forming mat with small, oval leaves that hug the ground for warmth and protection.

Where Does It Come From?

This hardy little plant is native to some of the coldest places on Earth – Alaska, northern Canada (Northwest Territories and Nunavut), and Greenland. It’s perfectly adapted to Arctic conditions where most plants simply can’t survive.

Why Would You Want to Grow It?

Let’s be honest – Ellesmereland whitlowgrass isn’t for everyone. But here’s why some gardeners might find it irresistible:

  • Ultimate cold hardiness (USDA zones 1-3)
  • Unique conversation starter in specialized gardens
  • Attracts small arctic pollinators like flies and tiny bees
  • Perfect for rock gardens and alpine collections
  • Authentic native plant for far northern regions

The Reality Check

Before you get too excited, here’s the truth: unless you live in Alaska, northern Canada, or have a very specialized setup, this plant probably isn’t going to work for you. It’s evolved for Arctic conditions and actually needs extreme cold to thrive. Think of it as the polar opposite of a tropical houseplant.

Growing Conditions

If you’re still determined to try growing Ellesmereland whitlowgrass, here’s what it needs:

  • Temperature: Extremely cold winters are essential
  • Sunlight: Full sun
  • Soil: Well-draining, rocky or sandy soil
  • Water: Low moisture requirements
  • Climate: Arctic or subarctic conditions

Planting and Care Tips

Growing this Arctic native is more like conducting a science experiment than traditional gardening:

  • Seeds require cold stratification (several months of freezing temperatures)
  • Plant in extremely well-draining soil – think more gravel than garden soil
  • Provide minimal water; these plants are adapted to dry Arctic conditions
  • Ensure excellent drainage to prevent root rot
  • Consider growing in specialized alpine houses or cold frames

Garden Design Ideas

If you can provide the right conditions, Ellesmereland whitlowgrass works well in:

  • Rock gardens with Arctic themes
  • Alpine plant collections
  • Specialized cold-climate gardens
  • Educational displays about Arctic flora

The Bottom Line

Ellesmereland whitlowgrass is a fascinating native plant that showcases nature’s incredible adaptability to extreme conditions. While it’s not practical for most gardeners, it represents an amazing example of Arctic flora. If you live in zones 4 and above, you’ll have much better luck with other native wildflowers that are adapted to your climate.

For most gardeners, the best way to appreciate this remarkable plant is through photos and educational materials about Arctic ecosystems. Sometimes the most beautiful plants are the ones we admire from afar!

Ellesmereland Whitlowgrass

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

Draba L. - draba

Species

Draba subcapitata Simmons - Ellesmereland whitlowgrass

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