North America Native Plant

Silverleaf Indian Breadroot

Botanical name: Pediomelum argophyllum

USDA symbol: PEAR6

Life cycle: perennial

Habit: forb

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

Synonyms: Psoralea argophylla Pursh (PSAR2)  âš˜  Psoralidium argophyllum (Pursh) Rydb. (PSAR5)  âš˜  Psoralea collina Rydb. (PSCO5)   

Silverleaf Indian Breadroot: A Prairie Gem for Your Native Garden If you’re looking to add some authentic prairie charm to your garden while supporting local wildlife, meet the silverleaf Indian breadroot (Pediomelum argophyllum). This unassuming native perennial might not win any flashy flower contests, but it’s got character, resilience, and ...

Silverleaf Indian Breadroot: A Prairie Gem for Your Native Garden

If you’re looking to add some authentic prairie charm to your garden while supporting local wildlife, meet the silverleaf Indian breadroot (Pediomelum argophyllum). This unassuming native perennial might not win any flashy flower contests, but it’s got character, resilience, and a fascinating history that makes it a worthy addition to any native plant enthusiast’s collection.

What Makes This Plant Special?

The silverleaf Indian breadroot is a true prairie survivor. This herbaceous perennial forb has been thriving across North America’s grasslands long before European settlement. Its common name hints at its historical importance – Indigenous peoples traditionally harvested its starchy roots as a food source, earning it the breadroot moniker.

You might also encounter this plant listed under its scientific synonyms: Psoralea argophylla, Psoralidium argophyllum, or Psoralea collina. Don’t let the name changes confuse you – it’s the same dependable prairie plant.

Where Does It Call Home?

This native beauty has quite the range! You’ll find silverleaf Indian breadroot naturally growing across the Great Plains and prairie regions, from the Canadian provinces of Alberta, Manitoba, and Saskatchewan, down through the central United States. Its native territory includes Colorado, Illinois, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, Wisconsin, and Wyoming.

What Does It Look Like?

Don’t expect towering drama from this prairie dweller. Silverleaf Indian breadroot stays relatively compact, typically reaching 1-2 feet in height and spreading about the same width. What really catches the eye is its distinctive silvery-gray foliage, created by dense, soft hairs that give the leaves their characteristic shimmery appearance – hence the silverleaf in its name.

Come late spring to early summer, small white to pale purple flowers appear in dense, elongated spikes rising above the foliage. While individually tiny, these blooms cluster together to create an attractive display that pollinators absolutely love.

Why Your Garden (and Local Wildlife) Will Thank You

Here’s where this humble plant really shines:

  • Pollinator magnet: Those small flowers pack a big punch when it comes to supporting native bees, butterflies, and other beneficial insects
  • Drought champion: Once established, this plant laughs in the face of dry spells thanks to its deep taproot
  • Low maintenance: Perfect for gardeners who want native beauty without the fuss
  • Authentic prairie character: Adds genuine regional character to native plant gardens and prairie restorations

Where to Plant It

Silverleaf Indian breadroot is happiest in full sun locations with well-draining soil. It’s particularly well-suited for:

  • Native plant and prairie gardens
  • Drought-tolerant landscapes and xeriscaping
  • Wildflower meadows and naturalized areas
  • Slopes and areas with challenging growing conditions

This adaptable plant tolerates a range of soil types, from sandy to clay, as long as drainage is adequate. It’s hardy in USDA zones 3-8, making it suitable for most temperate regions within its native range.

Growing Tips for Success

Here’s the straight scoop on getting silverleaf Indian breadroot established in your garden:

Starting from seed (recommended): This plant develops a deep taproot that makes it challenging to transplant, so direct seeding is your best bet. Sow seeds in fall for natural cold stratification, or scarify seeds before spring planting to improve germination rates.

Care requirements: Once established, this is truly a plant it and forget it species. Avoid overwatering or overly rich soils, which can actually weaken the plant. The deep taproot system makes it incredibly drought tolerant after the first year.

Patience pays off: Like many prairie plants, silverleaf Indian breadroot may take a year or two to really hit its stride. The old saying first year it sleeps, second year it creeps, third year it leaps definitely applies here.

The Bottom Line

Silverleaf Indian breadroot might not be the showiest plant in your garden, but it brings authentic prairie heritage, reliable performance, and valuable wildlife benefits to any native landscape. If you’re working on a prairie restoration, building a pollinator garden, or simply want to grow something that truly belongs in your region, this resilient native deserves serious consideration.

Plus, there’s something deeply satisfying about growing a plant that sustained Indigenous communities for generations and continues to support native wildlife today. That’s the kind of gardening legacy worth cultivating.

Silverleaf Indian Breadroot

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

Pediomelum Rydb. - Indian breadroot

Species

Pediomelum argophyllum (Pursh) J. Grimes - silverleaf Indian breadroot

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