North America Native Plant

Mule-ears

Botanical name: Wyethia ×cusickii

USDA symbol: WYCU

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Growing Mule-ears: A Native Wildflower for Pacific Northwest Gardens If you’re looking to add authentic Pacific Northwest charm to your garden, mule-ears (Wyethia ×cusickii) might just be the native wildflower you’ve been searching for. This perennial forb brings a touch of wild beauty that connects your landscape directly to the ...

Growing Mule-ears: A Native Wildflower for Pacific Northwest Gardens

If you’re looking to add authentic Pacific Northwest charm to your garden, mule-ears (Wyethia ×cusickii) might just be the native wildflower you’ve been searching for. This perennial forb brings a touch of wild beauty that connects your landscape directly to the natural heritage of Idaho and Oregon.

What Makes Mule-ears Special

Mule-ears belongs to the sunflower family and is a true native of the American West. As a hybrid species (indicated by the × in its scientific name), Wyethia ×cusickii represents nature’s own plant breeding experiment, combining traits from two parent Wyethia species to create something uniquely adapted to its northwestern home.

This herbaceous perennial lacks woody stems, instead growing as a forb that dies back to ground level each winter and emerges fresh each spring. Its perennating buds remain safely tucked at or below ground level, helping it survive harsh winters and return reliably year after year.

Where You’ll Find Mule-ears in the Wild

Mule-ears naturally grows in Idaho and Oregon, making it a perfect choice for gardeners in these states who want to create landscapes that reflect their local ecosystems. By choosing native species like this one, you’re supporting the plants that have evolved alongside local wildlife and climate patterns.

Why Consider Mule-ears for Your Garden

Native plants offer several compelling advantages for home gardeners:

  • Naturally adapted to local climate conditions
  • Requires less water once established compared to non-native alternatives
  • Supports local wildlife and pollinators
  • Connects your garden to the natural landscape
  • Often more resistant to local pests and diseases

The Challenge: Limited Growing Information

Here’s where things get a bit tricky – and honestly, quite fascinating from a botanical perspective. Because Wyethia ×cusickii is a specific hybrid, detailed cultivation information is surprisingly scarce. This isn’t uncommon with native plant hybrids, especially those that occur naturally in limited geographic ranges.

What we do know is that as a member of the Wyethia genus, it likely shares some characteristics with its relatives, but without specific research on this particular hybrid, we can’t make definitive recommendations about its exact growing requirements, mature size, or specific care needs.

If You’re Interested in Growing Mule-ears

If this native wildflower has caught your attention, here are some steps you can take:

  • Contact local native plant societies in Idaho or Oregon for firsthand growing experiences
  • Check with regional native plant nurseries about availability
  • Connect with university extension services in the Pacific Northwest
  • Consider visiting natural areas where it grows to observe its habitat preferences

Alternative Native Options

While you’re researching Wyethia ×cusickii, you might also explore other well-documented native Wyethia species or related native wildflowers from Idaho and Oregon. Many native plant nurseries carry a variety of regional wildflowers with proven garden performance and detailed growing information.

The Bottom Line

Mule-ears represents the kind of authentic native plant that can make your garden a true reflection of your local ecosystem. While specific growing information may be limited, the adventure of growing a lesser-known native species can be incredibly rewarding. Just be prepared to do some detective work and connect with local native plant experts who might have hands-on experience with this intriguing Pacific Northwest native.

Sometimes the most interesting plants are the ones that keep a few secrets – and mule-ears certainly fits that description!

Mule-ears

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

Wyethia Nutt. - mule-ears

Species

Wyethia ×cusickii Piper (pro sp.) [amplexicaulis × helianthoides] - mule-ears

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