North America Native Plant

Mule-ears

Botanical name: Wyethia ×magna

USDA symbol: WYMA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Mule-Ears: A Rare Colorado Native Worth Discovering If you’re looking to add something truly unique to your native plant garden, you might want to consider mule-ears (Wyethia ×magna). This perennial wildflower is one of those special plants that flies under the radar – and for good reason. It’s found only ...

Mule-Ears: A Rare Colorado Native Worth Discovering

If you’re looking to add something truly unique to your native plant garden, you might want to consider mule-ears (Wyethia ×magna). This perennial wildflower is one of those special plants that flies under the radar – and for good reason. It’s found only in Colorado, making it a real gem for gardeners who want to showcase plants that are truly local to their region.

What Makes Mule-Ears Special?

Mule-ears belongs to a fascinating group of plants in the Wyethia genus, and this particular species is actually a natural hybrid (that’s what the × symbol in its scientific name tells us). As a native forb – basically a non-woody flowering plant – it represents the kind of authentic wildflower that once covered much of the American landscape.

What’s particularly interesting about Wyethia ×magna is its extremely limited range. While many native plants can be found across multiple states, this mule-ears species calls only Colorado home. This makes it a perfect choice for gardeners who really want to plant something that belongs specifically to their corner of the world.

The Challenge and the Opportunity

Here’s where things get a bit tricky – and honestly, pretty exciting for the adventurous gardener. Because Wyethia ×magna is so rare and specialized, there’s limited information available about its specific growing requirements and garden performance. This isn’t necessarily a bad thing; it just means you’d be joining a very small group of gardeners working with this particular plant.

What we do know is that as a perennial forb, it should return year after year once established. Most plants in the Wyethia family are known for their sunny yellow daisy-like flowers and broad leaves (hence the mule-ears common name), though we can’t say for certain how this specific hybrid expresses these traits.

Should You Grow Mule-Ears?

If you’re a Colorado gardener who loves native plants and enjoys a bit of botanical mystery, mule-ears could be an intriguing addition to your landscape. However, there are a few things to consider:

  • Limited availability: You’ll likely need to work with specialized native plant nurseries or seed suppliers
  • Unknown garden performance: Without extensive cultivation history, you’d be pioneering its use in home landscapes
  • Authentic local character: This plant is as Colorado-native as it gets
  • Conservation value: Growing rare natives helps preserve genetic diversity

Growing Tips (What We Can Suggest)

While specific growing information for Wyethia ×magna is limited, most plants in the mule-ears family prefer:

  • Full sun to partial shade conditions
  • Well-draining soil
  • Moderate water once established
  • Space to spread, as these plants can form colonies over time

As a perennial, you can expect it to go dormant in winter and return the following spring. The best approach would be to observe how it performs in your specific location and adjust care accordingly.

The Bottom Line

Wyethia ×magna represents something special in the native plant world – a truly local species that connects your garden directly to Colorado’s unique botanical heritage. While growing it might require some detective work and patience, that’s part of what makes native gardening so rewarding. You’re not just growing a plant; you’re participating in the preservation of your region’s natural character.

If you do decide to seek out this rare mule-ears, make sure to source it responsibly from reputable native plant suppliers who can verify its origin. And don’t forget to document your experience – you might be among the first gardeners to really understand how this unique Colorado native performs in cultivation!

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 ×magna A. Nelson (pro sp.) [amplexicaulis × arizonica] - 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