North America Native Plant

Porsild’s Draba

Botanical name: Draba porsildii

USDA symbol: DRPO2

Life cycle: perennial

Habit: forb

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to the lower 48 states  

Porsild’s Draba: A Tiny Alpine Treasure for Specialized Gardens If you’re looking for a gardening challenge that will test your green thumb skills, Porsild’s draba (Draba porsildii) might just be the plant for you. This diminutive alpine perennial is about as far from your typical garden center find as you ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Porsild’s Draba: A Tiny Alpine Treasure for Specialized Gardens

If you’re looking for a gardening challenge that will test your green thumb skills, Porsild’s draba (Draba porsildii) might just be the plant for you. This diminutive alpine perennial is about as far from your typical garden center find as you can get – and that’s exactly what makes it so special for dedicated native plant enthusiasts.

What is Porsild’s Draba?

Porsild’s draba is a small perennial forb that belongs to the mustard family. Don’t let the term forb intimidate you – it simply means this is a non-woody flowering plant that dies back to ground level each winter. What makes this little guy remarkable is its ability to thrive in some of the harshest conditions on Earth: the windswept alpine zones and arctic tundra of North America.

Where Does It Come From?

This hardy little plant is native to Alaska, Canada, and select high-elevation areas in the lower 48 states. You’ll find it naturally growing in Alberta, British Columbia, Alaska, Colorado, Yukon, Northwest Territories, Montana, and Wyoming. It’s perfectly at home in places where most plants would simply give up – think rocky mountaintops and arctic meadows where the growing season is measured in weeks, not months.

A Word About Rarity

Here’s something important to know: Porsild’s draba has a conservation status of S3S4, which means it’s considered uncommon to fairly common but still needs attention. If you’re determined to grow this plant, please make sure you source it responsibly from reputable native plant nurseries – never collect from the wild.

What Does It Look Like?

Picture a tiny cushion of small, often fuzzy leaves hugging the ground for dear life, and you’ve got the basic idea. In spring (which might be July in its native habitat!), this little mat produces delicate clusters of small white flowers that seem almost too delicate for such a tough plant. The entire plant rarely grows more than a few inches tall, but it can spread into small mats over time.

Should You Grow Porsild’s Draba?

Let’s be honest – this isn’t a plant for everyone. Here’s who might want to give it a try:

  • Serious alpine garden enthusiasts with specialized growing setups
  • Native plant collectors looking for unique challenges
  • Gardeners in very cold climates (USDA zones 2-5) with excellent drainage
  • Rock garden aficionados who appreciate subtle beauty

However, you might want to skip this one if you’re looking for:

  • Easy, low-maintenance plants
  • Showy flowers for cutting gardens
  • Plants that work in typical garden soil
  • Something that grows quickly to fill space

Growing Conditions: It’s All About the Challenge

If you’re still reading and thinking challenge accepted, here’s what Porsild’s draba needs to thrive:

  • Drainage, drainage, drainage: Think sharp sand, gravel, and rocks – this plant will rot in anything that holds moisture
  • Full sun: It’s used to intense mountain sunshine
  • Cool temperatures: Even in cultivation, it prefers cool conditions
  • Alkaline soil: A bit of limestone in your growing mix won’t hurt
  • Winter chill: This plant actually needs a proper cold winter to bloom well

Planting and Care Tips

Fair warning: growing Porsild’s draba successfully is genuinely difficult. Here are some tips that might help:

  • Consider growing it in an alpine house or cold frame where you can control conditions
  • Use a very gritty soil mix – think 70% coarse sand and gravel, 30% lean soil
  • Water sparingly and only when the plant is actively growing
  • Provide excellent air circulation
  • Protect from summer heat and humidity if you live outside its natural range
  • Be patient – alpine plants operate on their own timeline

Wildlife and Pollinator Benefits

In its native habitat, Porsild’s draba provides nectar for small pollinators like flies and tiny native bees that are adapted to harsh alpine conditions. The small flowers might not look like much, but they’re perfectly timed to bloom when these specialized pollinators are active in the short alpine growing season.

The Bottom Line

Porsild’s draba is definitely not for the casual gardener, but for those who appreciate the subtle beauty of alpine plants and enjoy a real gardening challenge, it can be incredibly rewarding. Just remember to source your plants responsibly, be prepared for some failures along the way, and celebrate the small victories – like that first tiny cluster of white flowers that proves you’ve managed to recreate a little piece of the arctic tundra in your own garden.

If you’re new to alpine gardening, you might want to start with some easier native alternatives and work your way up to this mountain jewel. But if you’re ready for the challenge, Porsild’s draba offers a unique way to connect with some of North America’s most remote and beautiful landscapes.

Porsild’s Draba

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 porsildii G. Mulligan - Porsild's draba

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