North America Native Plant

Serpentine Ragwort

Botanical name: Packera serpenticola

USDA symbol: PASE16

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Serpentine Ragwort: A Rare North Carolina Native Worth Knowing About Meet serpentine ragwort (Packera serpenticola), one of North Carolina’s most specialized native wildflowers. This little-known perennial forb has carved out a very particular niche in the plant world, and while it might not be headed to your typical garden anytime ...

Serpentine Ragwort: A Rare North Carolina Native Worth Knowing About

Meet serpentine ragwort (Packera serpenticola), one of North Carolina’s most specialized native wildflowers. This little-known perennial forb has carved out a very particular niche in the plant world, and while it might not be headed to your typical garden anytime soon, it’s definitely worth understanding and appreciating.

What Makes Serpentine Ragwort Special?

Serpentine ragwort is what botanists call an endemic species – meaning it’s found naturally in only one specific region. In this case, that region is North Carolina’s unique serpentine rock outcrops. This perennial forb produces cheerful yellow daisy-like flowers in spring, but what really sets it apart is its incredible specialization to some of the most challenging growing conditions you can imagine.

Where Does It Call Home?

This rare native is found exclusively in North Carolina, where it has adapted to grow in serpentine soils – a type of soil that’s rich in magnesium but poor in most other nutrients that plants typically need. These harsh conditions would spell doom for most plants, but serpentine ragwort has evolved to not just survive, but thrive in this challenging environment.

Should You Grow Serpentine Ragwort?

Here’s where things get a bit complicated. While serpentine ragwort is undoubtedly fascinating, it’s not really a plant for the typical home garden. Here’s why:

  • Extreme rarity: This species has a very limited natural range and specialized habitat requirements
  • Soil specificity: It requires serpentine soils that are nearly impossible to replicate in garden settings
  • Conservation concerns: As a rare endemic, it should only be grown with responsibly sourced, ethically obtained plant material

If you’re absolutely determined to try growing this unique native, please ensure any plant material comes from reputable native plant nurseries that practice ethical propagation – never collect from wild populations.

Growing Conditions and Care

Serpentine ragwort’s growing requirements are as unique as the plant itself:

  • Soil: Requires serpentine or similar magnesium-rich, nutrient-poor soils
  • Hardiness: Likely hardy in USDA zones 6-8
  • Growth habit: Low-growing perennial forb
  • Flowers: Small yellow blooms appear in spring

The reality is that recreating the specific soil chemistry this plant needs is extremely challenging and probably not practical for most gardeners.

Wildlife and Pollinator Benefits

In its natural habitat, serpentine ragwort provides nectar for small native bees and flies. As part of a specialized ecosystem, it plays an important role in supporting insects that have also adapted to serpentine environments.

Better Alternatives for Your Garden

If you’re drawn to the idea of growing native Packera species, consider these more garden-friendly relatives that are easier to source and grow:

  • Golden ragwort (Packera aurea) – thrives in moist, shaded areas
  • Prairie ragwort (Packera plattensis) – great for sunny, dry sites
  • Small’s ragwort (Packera anonyma) – another southeastern native with less specialized needs

The Bottom Line

Serpentine ragwort is a remarkable example of plant adaptation and an important part of North Carolina’s natural heritage. While it’s not practical for most gardens, understanding and appreciating species like this helps us better value the incredible diversity of our native flora. If you’re interested in supporting conservation of rare plants like serpentine ragwort, consider supporting organizations that work to protect unique habitats and endemic species.

Sometimes the best way to grow a rare native plant is to help protect the wild places where it naturally thrives.

Serpentine 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

Packera Á. Löve & D. Löve - ragwort

Species

Packera serpenticola Boufford, Kartesz, S.H. Shi & Renchao Zhou - serpentine ragwort

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