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Wyethia angustifolia (Narrowleaf mule ears)

Other names: California compassplant, Narrow leaf mule ears, Alarconia angustifolia, Helianthus hookerianus, Helianthus longifolius, Leighia hookeriana, Wyethia foliosa, Wyethia robusta

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Species
W. angustifolia is a long-lived, clump-forming, rhizomatous, deciduous perennial with rosettes of upright, broadly lance-shaped, mid- to bright green leaves and sturdy, brown stems bearing golden-yellow flowers from late spring to midsummer.
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Season of interest

Flower

Spring Summer Autumn Winter
Flower

Foliage

Spring Summer Autumn Winter
Foliage
Height and spread

Height and spread

Size Max height Max spread To maturity
0.9 m 0.9 m 2-5 years
3 ft 3 ft 2-5 years

Where to grow

Soil type
  • Chalky
  • Loamy
  • Sandy
Soil drainage
  • Moist but well-drained
  • Well-drained
Soil pH
  • Acid
  • Alkaline
  • Neutral
Sunlight
  • Full Sun
Aspect
  • West
  • South
Exposure
  • Exposed
  • Sheltered

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Additional plant details

Cultivation

Grow in moderately fertile, well-drained or moist but well-drained soil in full sun. Tolerates a wide range of soil conditions except those with poor drainage. Drought tolerant once established.

Suggested uses

Gravel, Rock, Flower Arranging, Beds and borders, Cottage/Informal, City, Drought Tolerant, Low Maintenance, Wildlife, Prairie planting, Bees (attract & feed bees), Meadow

UK hardiness

USDA zones

Zone 5, Zone 6, Zone 7, Zone 8

Sunset zone

4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 1

WUCOLS

North-Central Coastal = Low
Central Valley = Low
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Deciduous

Habit

Clump-forming

Native to

California, Pacific Northwest (United States)

Drought tolerant

Yes

Flood tolerant

No

Toxicity

Not toxic

Plant care

Pruning

Deadhead regularly.

Propagation methods

Seed

Propagation

Seed requires cold-moist stratificaton for 90-120 days. Sow on compost and cover with fine grit or compost to approximately their own depth. Germination may be quicker if kept at 15-20C (59-68F).

Pests

Diseases

Sow seed

Harden off seedlings grown under cover

Deadhead regularly (optional)

Check for waterlogging during winter (optional)

Plant container grown plants in moderately fertile, well-drained soil

Plant container grown plants in a sunny postion

Sow seed in containers with heat (spring)

Other plants

Plants in this Genus (1)

Wyethia

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Wyethia angustifolia
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Wyethia angustifolia Narrowleaf mule ears
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Companion plants (0)

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