← Back to Plant Finder

Woodland Sunflower
Helianthus strumosus

Woodland Sunflower can be difficult to identify due to its resemblance with a number of other sunflower species. It can be found in open woodlands savannas and does best in dry soil and sunny conditions. It is a rhizomatous plant that can spread aggressively.

USDA symbol: HEST

General Information

Plant TypeForb
Height3 to 6 feet
Light ExposureShade
Soil MoistureMedium
Bloom ColorYellow
Woodland Sunflower (Woodland Sunflower<div><em class="small">Helianthus strumosus</em></div>)
Photo credit: United States Department of Agriculture (Click to enlarge)


Flooding / Inundation ToleranceLow
General Resilience7
Salt ToleranceMedium
Stress ToleranceDrought Tolerant, General Disturbance

Pollinator Value: Very High

Bloom MonthsJuly to October
Larval Host ofBees, Butterflies
Specific Pollinators HostedChlosyne gorgone, Numerous bee species
Pollinator BenefitInsect Pollinated, Provides Nectar, Stem Nesting, Supports Generalists

Project Planning

Project TypeBoulevard, Rain Garden, Shoreline Buffer
Coefficient of Conservatism6
Herbivore SensitivityMedium
Rate of SpreadMedium
Soil StabilizationShallow
Vegetative ReproductionClonal


CountyAnoka, Becker, Benton, Cass, Chisago, Clearwater, Dakota, Faribault, Fillmore, Goodhue, Hubbard, Kandiyohi, Mower, Pine, Pope, Ramsey, Rice, Sherburne, Sibley, Todd, Washington
EcoregionDriftless Area, Lake Agassiz Plain, North Central Hardwood Forests, Northern Glaciated Plains, Northern Lakes and Forests, Northern Minnesota Wetlands, Western Cornbelt Plains
Approximate Eco ProvinceEastern Broadleaf Forest, Laurentian Mixed Forest, Prairie Parkland, Tallgrass Aspen Parklands