North America Native Plant

Rockslide Yellow Fleabane

Botanical name: Erigeron leiomerus

USDA symbol: ERLE6

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Rockslide Yellow Fleabane: A Hardy Mountain Native for Your Rock Garden If you’ve ever wondered what gives high-mountain meadows their delicate charm, you might just be looking at rockslide yellow fleabane (Erigeron leiomerus). This unassuming little wildflower might not win any height contests, but what it lacks in stature, it ...

Rockslide Yellow Fleabane: A Hardy Mountain Native for Your Rock Garden

If you’ve ever wondered what gives high-mountain meadows their delicate charm, you might just be looking at rockslide yellow fleabane (Erigeron leiomerus). This unassuming little wildflower might not win any height contests, but what it lacks in stature, it more than makes up for in resilience and quiet beauty.

What Is Rockslide Yellow Fleabane?

Rockslide yellow fleabane is a native perennial forb that calls the rugged mountains of the western United States home. As a forb, it’s essentially an herbaceous plant without woody stems – think of it as nature’s answer to the perfect low-maintenance ground cover. This hardy little survivor has adapted to some of the harshest growing conditions imaginable, making it a fascinating addition to the right garden setting.

Where Does It Grow Naturally?

This mountain dweller is native to seven western states: Colorado, Idaho, Montana, Nevada, New Mexico, Utah, and Wyoming. You’ll typically find it clinging to rocky slopes, alpine meadows, and – true to its name – rockslide areas where most other plants would throw in the towel.

Why Your Garden Might Love This Little Mountain Gem

Don’t let the name fleabane fool you – this plant is actually quite attractive! Rockslide yellow fleabane produces charming daisy-like flowers with sunny yellow centers surrounded by delicate white to pale yellow petals. While each individual flower might be small, they often appear in clusters that create lovely patches of color against rocky backgrounds.

Here’s why you might want to consider adding this native beauty to your landscape:

  • Native pollinator magnet: Small native bees, butterflies, and other alpine pollinators absolutely love these flowers
  • Extremely drought tolerant: Once established, it thrives with minimal water
  • Cold hardy: Adapted to harsh mountain winters (USDA zones 3-7)
  • Low maintenance: Perfect for gardeners who prefer a hands-off approach
  • Authentic western character: Brings genuine regional identity to your landscape

The Perfect Garden Match

Rockslide yellow fleabane isn’t for every garden – and that’s perfectly okay! This specialized native thrives in specific settings:

  • Rock gardens: Absolutely perfect for tucking between stones
  • Alpine gardens: Essential for authentic high-elevation landscapes
  • Xeriscapes: Ideal for water-wise gardening in appropriate climates
  • Naturalized mountain settings: Great for restoring or mimicking natural habitats

If you’re dreaming of a traditional cottage garden or lush perennial border, this might not be your plant. But if you’re drawn to the stark beauty of mountain landscapes or need something tough for challenging spots, rockslide yellow fleabane could be exactly what you’re looking for.

Growing Rockslide Yellow Fleabane Successfully

The secret to success with this mountain native is simple: think like a mountain! Here’s how to keep your rockslide yellow fleabane happy:

Light: Full sun is essential. This plant has zero tolerance for shade.

Soil: Well-draining, rocky, or gravelly soil is crucial. Heavy clay or rich garden soil will likely kill it. Think harsh mountain conditions rather than pampered garden bed.

Water: Once established, minimal water is best. Overwatering is probably the fastest way to lose this plant.

Climate: Naturally adapted to USDA hardiness zones 3-7, with a preference for areas that experience cold winters and dry summers.

Planting and Care Tips

Getting rockslide yellow fleabane established requires patience and the right approach:

  • Plant in spring after the last hard frost
  • Ensure exceptional drainage – consider raised beds or slopes if your soil holds moisture
  • Water sparingly during establishment, then back off significantly
  • Avoid fertilizing – rich conditions can actually harm this adapted native
  • Be patient – mountain natives often take time to establish but reward you with longevity

Remember, this isn’t a plant for instant gratification gardens. It’s for gardeners who appreciate the subtle beauty of adaptation and the satisfaction of growing something truly regional and authentic. If you can provide the right conditions, rockslide yellow fleabane will reward you with years of delicate blooms and the knowledge that you’re supporting native pollinators with a plant that truly belongs in your landscape.

Rockslide Yellow Fleabane

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

Erigeron L. - fleabane

Species

Erigeron leiomerus A. Gray - rockslide yellow fleabane

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