North America Native Plant

Locoweed

Botanical name: Oxytropis bellii

USDA symbol: OXBE5

Life cycle: perennial

Habit: forb

Native status: Native to Canada  

Synonyms: Oxytropis arctica R. Br. var. bellii (Britton ex Macoun) B. Boivin (OXARB3)   

Bell’s Locoweed: A Rare Arctic Beauty for the Adventurous Gardener If you’re looking for a conversation starter that screams I garden on expert mode, then Bell’s locoweed (Oxytropis bellii) might just be your next obsession. This isn’t your typical garden center find – it’s a rare perennial that calls the ...

Rare plant alert!

Region: Conservation status by state

Status: S4?T2: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Subspecies or variety is imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ 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 ⚘

Bell’s Locoweed: A Rare Arctic Beauty for the Adventurous Gardener

If you’re looking for a conversation starter that screams I garden on expert mode, then Bell’s locoweed (Oxytropis bellii) might just be your next obsession. This isn’t your typical garden center find – it’s a rare perennial that calls the frigid reaches of northern Canada home and demands respect from anyone brave enough to attempt growing it.

What Exactly Is Bell’s Locoweed?

Bell’s locoweed is a hardy perennial forb that belongs to the legume family. Don’t let the name fool you – while it’s called locoweed, this particular species is a legitimate native plant with silvery-green compound leaves and charming clusters of purple to pink pea-like flowers. It’s also known by its synonym Oxytropis arctica var. bellii, but let’s stick with the simpler name, shall we?

As a forb, this plant lacks significant woody tissue and keeps its growing points at or below ground level – a smart survival strategy when you’re dealing with Arctic conditions that would make a polar bear shiver.

Where Does It Come From?

This tough little survivor is native to Canada, specifically calling Manitoba and Nunavut home. We’re talking about regions where winter isn’t just a season – it’s a way of life. Bell’s locoweed has evolved to thrive in some of the harshest conditions on the continent.

The Rarity Reality Check

Important note: Bell’s locoweed has a Global Conservation Status of S4?T2, indicating it’s considered rare. If you’re determined to grow this plant, please ensure you source it responsibly from reputable native plant nurseries or botanical institutions – never collect from wild populations.

Why You Might (or Might Not) Want to Grow It

Reasons to consider it:

  • Unique aesthetic appeal with its silvery foliage and purple flower spikes
  • Supports native Arctic pollinators when grown in appropriate climates
  • Perfect for specialized rock gardens or alpine collections
  • Bragging rights as one of the most challenging native plants to cultivate

Reasons to think twice:

  • Extremely limited growing range (USDA zones 1-3 only)
  • Requires specific Arctic conditions that are nearly impossible to replicate in most gardens
  • Rare status means limited availability and high responsibility
  • May struggle or fail completely in warmer climates

Growing Conditions: Not for the Faint of Heart

Bell’s locoweed isn’t just particular – it’s downright demanding. This plant requires:

  • Climate: USDA hardiness zones 1-3 (think northern Alaska or northern Canada cold)
  • Sunlight: Full sun exposure
  • Soil: Well-drained, sandy or gravelly soils with excellent drainage
  • Moisture: Low to moderate water needs once established
  • Special requirements: Cold stratification for seed germination

Garden Design and Landscape Role

If you’re fortunate enough to garden in zones 1-3, Bell’s locoweed works best in:

  • Specialized Arctic or alpine plant collections
  • Rock gardens designed for extreme cold-hardy plants
  • Native plant restoration projects in appropriate regions
  • Educational gardens focused on Arctic flora

This isn’t a plant for traditional perennial borders or typical landscaping – it’s more of a botanical treasure for dedicated cold-climate native plant enthusiasts.

Planting and Care Tips

Successfully growing Bell’s locoweed requires patience and precision:

  • Seed starting: Seeds need extended cold stratification (several months at near-freezing temperatures)
  • Soil preparation: Ensure exceptional drainage – think more gravel than soil
  • Fertilization: Minimal to none – this plant evolved in nutrient-poor conditions
  • Watering: Water sparingly; overwatering is often fatal
  • Winter protection: Ironically, protection from winter temperature fluctuations in warmer zones

Wildlife and Pollinator Benefits

In its native range, Bell’s locoweed provides valuable nectar for cold-adapted native bees and other Arctic pollinators. The flowers bloom in dense spikes that create landing platforms for these specialized insects, making it an important component of Arctic ecosystems.

The Bottom Line

Bell’s locoweed is the botanical equivalent of climbing Mount Everest – technically possible but definitely not for everyone. If you live in zones 1-3 and have experience with challenging native plants, this rare beauty could be a worthy addition to a specialized collection. For everyone else, it’s probably best admired from afar or in botanical garden settings.

Remember, with great rarity comes great responsibility. If you do decide to take on this challenge, source your plants ethically and be prepared for a learning curve steeper than a glacial moraine. But hey, if you succeed, you’ll have one of the most unique native plants in North America gracing your garden!

Locoweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Oxytropis DC. - locoweed

Species

Oxytropis bellii (Britton ex Macoun) Palib. - locoweed

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