North America Native Plant

Hall’s Ragwort

Botanical name: Senecio bigelovii var. hallii

USDA symbol: SEBIH

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Ligularia bigelovii (A. Gray) W.A. Weber var. hallii (A. Gray) Dorn (LIBIH)   

Hall’s Ragwort: A Hidden Gem for Native Plant Enthusiasts If you’re looking to add some authentic southwestern flair to your native plant garden, Hall’s ragwort (Senecio bigelovii var. hallii) might just be the understated beauty you’ve been searching for. This perennial wildflower brings the classic charm of yellow daisy-like blooms ...

Rare plant alert!

Region: Conservation status by state

Status: S4?T3T4: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Subspecies or variety is 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. ⚘ 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 ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘

Hall’s Ragwort: A Hidden Gem for Native Plant Enthusiasts

If you’re looking to add some authentic southwestern flair to your native plant garden, Hall’s ragwort (Senecio bigelovii var. hallii) might just be the understated beauty you’ve been searching for. This perennial wildflower brings the classic charm of yellow daisy-like blooms to landscapes across the American Southwest, though you’ll need to hunt a bit to find it in nurseries.

What Is Hall’s Ragwort?

Hall’s ragwort is a native perennial forb – basically a non-woody flowering plant that comes back year after year. As a variety of Bigelow’s ragwort, it’s perfectly adapted to life in the more challenging climates of the southwestern United States. You might also see it listed under its scientific synonym Ligularia bigelovii var. hallii in some botanical references, but don’t let that confuse you – it’s the same plant.

Where Does It Call Home?

This native beauty has made itself at home across five southwestern states: Arizona, Colorado, New Mexico, Utah, and Wyoming. It’s a true child of the American West, having evolved alongside the region’s unique climate and wildlife for thousands of years.

Should You Plant Hall’s Ragwort?

Here’s where things get a bit complicated. While Hall’s ragwort would make a wonderful addition to native plant gardens, it comes with an important caveat – it has a conservation status that suggests it may be uncommon in parts of its range. This means if you decide to grow it, you’ll want to source it responsibly.

The good news: Growing native plants like Hall’s ragwort in your garden can actually help support local ecosystems and provide habitat for native pollinators. The typical yellow, daisy-like flowers of the ragwort family are known to attract native bees, butterflies, and other beneficial insects.

The important part: Only obtain plants or seeds from reputable native plant nurseries that ethically source their material. Never collect from wild populations, as this could harm already vulnerable communities of this plant.

Growing Hall’s Ragwort Successfully

Since detailed growing information specific to Hall’s ragwort is limited, we can draw from what we know about its native habitat and related species. Here’s what will likely make this plant happy in your garden:

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soils – these plants don’t like wet feet
  • Water: Drought-tolerant once established, mimicking its natural arid habitat
  • Climate: Best suited for USDA hardiness zones 4-8, based on its native range

Perfect Garden Companions

Hall’s ragwort would feel right at home in:

  • Native plant gardens focused on southwestern species
  • Xeriscapes and water-wise landscapes
  • Wildflower meadows
  • Pollinator gardens

Consider pairing it with other native southwestern perennials that share similar growing conditions and can create a naturalistic plant community.

The Bottom Line

Hall’s ragwort represents the kind of authentic, regionally appropriate plant that can make native gardens truly special. While it may not be the showiest plant in your garden, it offers the satisfaction of growing something genuinely local and potentially beneficial to native wildlife. Just remember – if you can find it, source it responsibly, and you’ll be doing right by both your garden and the wild populations of this interesting native plant.

Sometimes the most rewarding plants to grow are the ones that challenge us to be better gardeners and conservation-minded citizens. Hall’s ragwort might just be one of those plants.

Hall’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 bigelovii A. Gray - nodding ragwort

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