Willowleaf Sunflower

Helianthus salicifolius, Asteraceae

Zones

4–9

Layer

Herbaceous

Lifespan

Perennial

Growth

Fast

Guild Roles

Pollinator AttractorBeneficial Insect HabitatWindbreak

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)Moderate (seedling)

Soil pH

6 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Silvery LupineLupinus argenteus

Nitrogen Fixation

Lamp-wick Jerusalem SagePhlomis lychnitis

Pest DeterrentBeneficial Insect Habitat

Aromatic AsterSymphyotrichum oblongifolium

Pollinator SharingBeneficial Insect Habitat

Antagonistic Plants

White Oldfield AsterSymphyotrichum ericoides

Asteraceae family members often produce allelopathic compounds, with aster species known to inhibit sunflower growth through chemical interference

Rosebay WillowherbEpilobium dodonaei

Tall sunflowers can severely shade smaller plants like Epilobium, while producing allelopathic compounds that inhibit growth

Uses

Functions

Late Season Pollinator SupportWildlife FoodTall Background Plant

Edible Parts

SeedsFlower Buds

Medicinal Uses

Traditional Respiratory Ailments

Common Questions

What zones does Willowleaf Sunflower grow in?

Willowleaf Sunflower grows in USDA hardiness zones 4 through 9.

What are good companion plants for Willowleaf Sunflower?

Good companions for Willowleaf Sunflower include Silvery Lupine, Lamp-wick Jerusalem Sage, Aromatic Aster.

Design guilds with Willowleaf Sunflower and see companion relationships visually.

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