North America Native Plant

Woolly Mule-ears

Botanical name: Wyethia mollis

USDA symbol: WYMO

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Woolly Mule-Ears: A Fuzzy Native with Sunshine Blooms If you’re looking for a plant that’s both adorably fuzzy and incredibly tough, meet woolly mule-ears (Wyethia mollis)! This charming native perennial might have an unusual name, but it’s got serious appeal for gardeners who want low-maintenance beauty with a distinctive look. ...

Woolly Mule-Ears: A Fuzzy Native with Sunshine Blooms

If you’re looking for a plant that’s both adorably fuzzy and incredibly tough, meet woolly mule-ears (Wyethia mollis)! This charming native perennial might have an unusual name, but it’s got serious appeal for gardeners who want low-maintenance beauty with a distinctive look.

What Makes Woolly Mule-Ears Special?

This delightful native forb is like nature’s own version of a soft sculpture. The large, spoon-shaped leaves are covered in dense, woolly hairs that give them a silvery-gray appearance and a texture that practically begs to be touched (gently, of course!). Come late spring, bright yellow daisy-like flowers emerge on sturdy stems, creating a cheerful contrast against the fuzzy foliage.

As a true native of the American West, woolly mule-ears calls California, Nevada, and Oregon home. It’s perfectly adapted to the dry, open spaces of chaparral, oak woodlands, and grasslands where it has evolved over thousands of years.

Why Your Garden Will Love Woolly Mule-Ears

Here’s where this plant really shines – it’s built for the real world! Growing to about 2.5 feet tall, this slow-growing perennial forms attractive bunches that serve multiple purposes in your landscape:

  • Drought Champion: With high drought tolerance and low water needs, it’s perfect for water-wise gardening
  • Textural Interest: Those woolly leaves add incredible texture and color contrast to garden beds
  • Wildlife Magnet: The bright flowers are a hit with native bees, butterflies, and other pollinators
  • Fire Resilient: High fire tolerance makes it suitable for fire-prone areas
  • Long-Lived: This perennial will be with you for the long haul with minimal fuss

Perfect Garden Matches

Woolly mule-ears is a natural fit for several garden styles:

  • Native plant gardens where it can mingle with other indigenous species
  • Drought-tolerant landscapes that prioritize water conservation
  • Mediterranean-style gardens with their emphasis on texture and form
  • Rock gardens where its architectural shape creates focal points
  • Naturalized areas that mimic wild spaces

Growing Your Woolly Mule-Ears Successfully

Climate and Hardiness: Best suited for USDA zones 8-10, this plant can handle temperatures down to -13°F and thrives in areas with mild winters and dry summers.

Site Selection: Choose a spot with full sun to partial shade. While woolly mule-ears is shade tolerant, it performs best with good light exposure.

Soil Requirements: This adaptable plant prefers well-draining soils and actually thrives in poor conditions. It handles coarse and medium-textured soils beautifully but struggles in heavy clay. A pH between 6.5 and 8.5 is ideal, and it has medium tolerance for limestone soils.

Water Wisdom: Once established, woolly mule-ears needs very little water. It’s adapted to areas receiving just 8-16 inches of annual precipitation, so avoid overwatering which can lead to root problems.

Planting and Care Tips

Starting from Seed: This plant is typically grown from seed, with about 25,000 seeds per pound. Plant seeds in fall to allow for natural cold treatment over winter.

Spacing: Give each plant room to develop its full rosette form – they spread slowly and prefer not to be crowded.

Maintenance: Here’s the best part – woolly mule-ears is practically maintenance-free! It has a slow growth rate and doesn’t require fertilization (it actually prefers low fertility). The plant doesn’t resprout after cutting, so avoid heavy pruning.

Seasonal Care: Active growth occurs in spring and summer, with blooms appearing in late spring. After flowering, seeds develop and are ready by summer. The plant naturally goes dormant in winter when the foliage becomes more porous.

A Few Things to Keep in Mind

Woolly mule-ears isn’t the fastest-growing plant you’ll encounter – patience is key as it establishes slowly but surely. It also doesn’t transplant well once established due to its deep taproot (minimum 20 inches), so choose your planting location carefully.

Commercial availability is limited to specialty native plant growers, so you might need to plan ahead or start from seed.

The Bottom Line

If you’re gardening in the western states and want a distinctive, low-maintenance native that supports local wildlife while adding unique texture to your landscape, woolly mule-ears is definitely worth considering. It’s a plant that rewards patience with years of fuzzy-leafed charm and cheerful blooms – all while asking for very little in return!

How

Woolly Mule-ears

Grows

Growing season

Spring and Summer

Lifespan

Long

Growth form & shape

Bunch and Erect

Growth rate

Slow

Height at 20 years
Maximum height

2.5

Foliage color

White-Gray

Summer foliage density

Moderate

Winter foliage density

Porous

Foliage retention

No

Flowering

Yes

Flower color

White

Fruit/seeds

No

Fruit/seed color

Brown

Allelopath

No

Nitrogen fixing

None

Toxic

None

C:N Ratio

High

Fire Resistant

No

Foliage Texture

Coarse

Low-growing Grass

No

Resproutability

No

Coppice Ability

No

Bloat

None

Woolly Mule-ears

Growing Conditions

Adapted to Coarse Soil

Yes

Adapted to Medium Soil

Yes

Adapted to Fine Soil

No

Anaerobic tolerance

None

CaCO₃ tolerance

Medium

Cold Stratification

No

Drought tolerance

High

Nutrient requirement

Low

Fire tolerance

High

Frost-free days minimum

165

Hedge tolerance

None

Moisture requirement

Low

pH range

6.5 to 8.5

Plants per acre
Precipitation range (in)

8 to 16

Min root depth (in)

20

Salt tolerance

None

Shade tolerance

Tolerant

Min temperature (F)

-13

Cultivating

Woolly Mule-ears

Flowering season

Late Spring

Commercial availability

Contracting Only

Fruit/seed abundance

High

Fruit/seed season

Summer to Summer

Fruit/seed persistence

No

Propagated by bare root

No

Propagated by bulb

No

Propagated by container

No

Propagated by corm

No

Propagated by cuttings

No

Propagated by seed

Yes

Propagated by sod

No

Propagated by sprigs

No

Propagated by tubers

No

Seed per pound

25000

Seed spread rate

Slow

Seedling vigor

High

Small grain

No

Vegetative spread rate

Slow

Woolly 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 mollis A. Gray - woolly 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