North America Native Plant

Largeflower Hawksbeard

Botanical name: Crepis occidentalis costata

USDA symbol: CROCC2

Life cycle: annual

Habit: forb

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

Synonyms: Crepis occidentalis Nutt. var. costata A. Gray (CROCC3)  âš˜  Psilochenia occidentalis (Nutt.) Nutt. ssp. costata (A. Gray) W.A. Weber (PSOCC2)   

Largeflower Hawksbeard: A Native Western Wildflower Worth Knowing If you’re looking to add some authentic western charm to your native plant garden, largeflower hawksbeard (Crepis occidentalis costata) might just be the unsung hero you’ve been searching for. This hardy native wildflower brings both beauty and ecological value to landscapes across ...

Largeflower Hawksbeard: A Native Western Wildflower Worth Knowing

If you’re looking to add some authentic western charm to your native plant garden, largeflower hawksbeard (Crepis occidentalis costata) might just be the unsung hero you’ve been searching for. This hardy native wildflower brings both beauty and ecological value to landscapes across western North America, though it tends to fly under the radar compared to showier native plants.

What Is Largeflower Hawksbeard?

Largeflower hawksbeard is a native forb—essentially a non-woody flowering plant—that can behave as either an annual or perennial depending on growing conditions. As a member of the sunflower family, it produces cheerful yellow composite flowers that look like small dandelions but with a more refined appearance.

This plant is a true North American native, naturally occurring across Canada and the lower 48 states. You’ll find it growing wild from the Canadian provinces of Alberta, British Columbia, and Saskatchewan, down through the western United States including Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming.

Why Consider Growing Largeflower Hawksbeard?

Here are several compelling reasons to give this native plant a spot in your garden:

  • True native credentials: Supporting local ecosystems by growing plants that naturally belong in your region
  • Low maintenance: Once established, native plants typically require less water and care than non-natives
  • Pollinator support: The bright yellow flowers attract bees and other beneficial insects
  • Adaptable nature: Can function as either an annual or perennial, giving you flexibility
  • Authentic western character: Adds genuine regional flavor to native plant gardens

Where Does It Fit in Your Landscape?

Largeflower hawksbeard works best in naturalistic settings rather than formal garden designs. Consider incorporating it into:

  • Native plant gardens
  • Wildflower meadows
  • Prairie restorations
  • Wildlife habitat areas
  • Low-maintenance landscape zones

This isn’t typically a plant for manicured flower borders, but it shines in settings where you want to recreate the natural beauty of western landscapes.

Growing Conditions and Care

Like many western natives, largeflower hawksbeard appreciates conditions that mimic its natural habitat:

  • Sunlight: Full sun exposure for best performance
  • Soil: Well-draining soils, from dry to moderately moist
  • Water: Drought tolerant once established, though some moisture helps
  • Climate: Hardy across a wide range, roughly USDA zones 3-8

Planting and Establishment Tips

Success with largeflower hawksbeard starts with understanding its preferences:

  • Plant in spring after frost danger passes
  • Choose a sunny location with good drainage
  • Avoid overwatering, especially once established
  • Allow plants to self-seed if you want natural spreading
  • Expect variable behavior—some plants may act as annuals, others as short-lived perennials

The Bottom Line

Largeflower hawksbeard might not win any flashiness contests, but it offers something perhaps more valuable: authentic native character and reliable performance in western gardens. If you’re building a native plant collection or creating habitat for local wildlife, this understated wildflower deserves consideration.

While it may not be the star of your garden, largeflower hawksbeard plays an important supporting role—much like the best character actors in a great movie. Sometimes the most valuable plants are the ones that quietly do their job while supporting the bigger picture of a thriving, native ecosystem.

Largeflower Hawksbeard

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Crepis L. - hawksbeard

Species

Crepis occidentalis Nutt. - largeflower hawksbeard

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