North America Native Plant

Lost River Draba

Botanical name: Draba hitchcockii

USDA symbol: DRHI2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Lost River Draba: A Rare Alpine Gem Worth Protecting Meet the Lost River draba (Draba hitchcockii), a tiny but mighty perennial that’s as rare as it is remarkable. This diminutive native wildflower might not win any height contests, but what it lacks in stature, it makes up for in conservation ...

Rare plant alert!

Region: Conservation status by state

Status: S3: 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 ⚘

Lost River Draba: A Rare Alpine Gem Worth Protecting

Meet the Lost River draba (Draba hitchcockii), a tiny but mighty perennial that’s as rare as it is remarkable. This diminutive native wildflower might not win any height contests, but what it lacks in stature, it makes up for in conservation significance and alpine charm.

What Makes Lost River Draba Special?

This petite forb belongs to the mustard family and embodies the tough-as-nails spirit of high-elevation plants. Lost River draba forms low, cushion-like clumps that hug the ground, perfectly adapted to withstand harsh mountain winds and extreme temperature swings. In late spring and early summer, it produces clusters of small, four-petaled white flowers that seem to glow against rocky alpine terrain.

A True Idaho Native with Limited Range

Lost River draba is endemic to Idaho, making it a genuine local treasure. This perennial has an extremely limited geographic distribution, found primarily in the Lost River Range and surrounding high-elevation areas of central Idaho. Its restricted range contributes to its vulnerable conservation status.

Conservation Status: Handle with Care

Here’s where things get serious. Lost River draba has a Global Conservation Status of S3, meaning it’s considered vulnerable to extinction. With only 21 to 100 known occurrences and an estimated 3,000 to 10,000 individuals remaining in the wild, this plant needs our protection, not our shovels.

Important: If you’re considering adding this species to your garden, please only use responsibly sourced material from reputable native plant nurseries that propagate rather than wild-collect their plants. Never harvest seeds or plants from wild populations.

Garden Potential and Realistic Expectations

Let’s be honest – Lost River draba isn’t your typical garden center find, and there’s good reason for that. This alpine specialist has very specific needs that are challenging to replicate in most garden settings:

  • Requires excellent drainage and rocky, mineral-rich soils
  • Needs cold winter temperatures and cool summers
  • Thrives in USDA hardiness zones 3-6
  • Performs best in full sun to partial shade
  • Struggles in hot, humid conditions

Best Garden Applications

If you’re up for the challenge and can source plants responsibly, Lost River draba works best in:

  • Alpine and rock gardens
  • Specialized native plant collections
  • Troughs and containers with perfect drainage
  • High-elevation mountain gardens

Wildlife and Pollinator Benefits

Despite its tiny flowers, Lost River draba provides nectar for small native bees, flies, and other diminutive pollinators. In its natural habitat, it’s part of a complex alpine ecosystem that supports specialized high-elevation wildlife.

Growing Tips for the Adventurous

If you decide to grow Lost River draba, here’s what you need to know:

  • Provide sharp drainage – think pure grit with minimal organic matter
  • Choose a location with morning sun and afternoon shade in warmer climates
  • Water sparingly and avoid summer moisture on foliage
  • Mulch with fine gravel rather than organic mulch
  • Protect from excessive heat and humidity

The Bottom Line

Lost River draba represents everything we love about native plants – it’s perfectly adapted to its environment, supports local ecosystems, and tells a story about Idaho’s unique botanical heritage. However, its rarity means most gardeners should appreciate it from afar and focus on more common native alternatives.

If you’re passionate about alpine plants and committed to responsible sourcing, this little gem could be a meaningful addition to a specialized collection. Just remember: with great rarity comes great responsibility. Let’s keep Lost River draba thriving in both gardens and the wild for generations to come.

Lost River 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 hitchcockii Rollins - Lost River draba

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