North America Native Plant

Elmer’s Ragwort

Botanical name: Senecio elmeri

USDA symbol: SEEL2

Life cycle: perennial

Habit: forb

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

Synonyms: Senecio crepidineus Greene (SECR5)   

Elmer’s Ragwort: A Pacific Northwest Native Worth Getting to Know If you’re looking to add some sunny yellow blooms to your Pacific Northwest garden while supporting local wildlife, let me introduce you to Elmer’s ragwort (Senecio elmeri). This charming native perennial might not have the flashiest name, but it’s got ...

Elmer’s Ragwort: A Pacific Northwest Native Worth Getting to Know

If you’re looking to add some sunny yellow blooms to your Pacific Northwest garden while supporting local wildlife, let me introduce you to Elmer’s ragwort (Senecio elmeri). This charming native perennial might not have the flashiest name, but it’s got plenty of personality and ecological value packed into its unassuming frame.

What Exactly Is Elmer’s Ragwort?

Elmer’s ragwort is a native perennial forb – basically a non-woody flowering plant that comes back year after year. You might also see it listed under its synonym Senecio crepidineus Greene in older plant references. As a member of the sunflower family, it produces clusters of bright yellow, daisy-like flowers that are absolutely irresistible to pollinators.

Where Does It Call Home?

This lovely native has a pretty specific neighborhood – you’ll find Elmer’s ragwort naturally growing in British Columbia and Washington state. It’s perfectly adapted to Pacific Northwest conditions, which makes it an excellent choice for gardeners in this region who want to work with nature rather than against it.

Why Your Garden (and Local Wildlife) Will Love It

Here’s where Elmer’s ragwort really shines. Those cheerful yellow flowers aren’t just pretty to look at – they’re like a five-star restaurant for bees, butterflies, and other beneficial insects. The composite flower structure provides easy access to nectar and pollen, making your garden a pollinator paradise.

From a design perspective, this plant brings a relaxed, wildflower charm to any landscape. It’s perfect for:

  • Native plant gardens
  • Wildflower meadows
  • Naturalized landscape areas
  • Pollinator gardens
  • Low-maintenance garden borders

Growing Conditions and Care

One of the best things about choosing native plants is that they’re already adapted to your local conditions. Elmer’s ragwort thrives in USDA hardiness zones 6-9, which covers most of the Pacific Northwest beautifully.

For the happiest plants, provide:

  • Moist, well-drained soil (it doesn’t like soggy feet, but appreciates consistent moisture)
  • Partial shade to full sun exposure
  • Space to naturalize if you want it to spread

Planting and Care Tips

The beauty of native plants like Elmer’s ragwort is that they don’t ask for much once they’re settled in. Here are some tips for success:

  • Plant in spring or fall when temperatures are mild
  • Water regularly during the first growing season to help establish roots
  • Once established, it’s quite low-maintenance and drought-tolerant
  • Allow it to self-seed if you want more plants (it’s not aggressive about spreading)
  • Deadhead spent flowers if you prefer a tidier look, or leave them for wildlife

Is This Plant Right for Your Garden?

Elmer’s ragwort is an excellent choice if you’re gardening in the Pacific Northwest and want to support local ecosystems while enjoying beautiful blooms. It’s particularly perfect for gardeners who appreciate a more natural, less formal garden style.

However, if you’re looking for a plant with a long blooming season or architectural structure, this might not be your first choice. It’s more of a supporting cast member than a leading lady in the garden theater.

Since this is a true native plant, you’re not just adding beauty to your landscape – you’re also supporting the complex web of relationships between plants and wildlife that have evolved in your region over thousands of years. And honestly, there’s something pretty special about that connection to place.

The Bottom Line

Elmer’s ragwort may not be the showiest plant on the block, but it’s got that quiet confidence that comes with being perfectly suited to its environment. If you’re building a garden that celebrates Pacific Northwest flora while providing real benefits to local wildlife, this native perennial deserves a spot on your plant list.

Elmer’s Ragwort

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

Senecio L. - ragwort

Species

Senecio elmeri Piper - Elmer's ragwort

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