Western Sunflower

Helianthus occidentalis, Asteraceae

Zones

4–8

Layer

Herbaceous

Lifespan

Perennial

Growth

Moderate

Guild Roles

Pollinator AttractorBeneficial Insect Habitat

Growing Conditions

Sun

Full Sun (preferred)

Water

Low

Soil pH

5.5 – 7

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Wrinkleleaf GoldenrodSolidago rugosa

Pollinator SharingBeneficial Insect Habitat

Orange ConeflowerRudbeckia fulgida

Pollinator SharingBeneficial Insect Habitat

Indian GrassSorghastrum nutans

Wind ProtectionBeneficial Insect Habitat

Lindheimer MuhlyMuhlenbergia lindheimeri

Wind ProtectionBeneficial Insect Habitat

BuffalograssBouteloua dactyloides

Nurse PlantBeneficial Insect Habitat

Side-Oats GramaBouteloua curtipendula

Wind ProtectionBeneficial Insect Habitat

Antagonistic Plants

ButternutJuglans cinerea

Western sunflower is sensitive to juglone compounds from butternut

California Gray RushJuncus patens

Western sunflower's allelopathic effects and root competition affect California gray rush

Uses

Functions

Wildlife Food

Edible Parts

Seeds

Common Questions

What zones does Western Sunflower grow in?

Western Sunflower grows in USDA hardiness zones 4 through 8.

What are good companion plants for Western Sunflower?

Good companions for Western Sunflower include Wrinkleleaf Goldenrod, Orange Coneflower, Indian Grass, Lindheimer Muhly, Buffalograss.

Design guilds with Western Sunflower and see companion relationships visually.

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