Thin-leaved Sunflower
Helianthus decapetalus

Thin-leaved sunflower is a woodland-edge perennial sunflower with pale yellow daisies on branching stems, thriving in part shade where few sunflowers will. Seeds feed finches; foliage hosts many caterpillars.
- Family
- Asteraceae
- Type
- wildflower
- Lifespan
- perennial
- Height
- 2–5 ft
- Spacing
- 2–4 ft apart
- Light
- sun, part shade, shade
- Soil moisture
- moist
- Soil pH
- neutral
- Bloom
- June, July, August, September, October, November
- Bloom colors
- yellow
- Wildlife value
- songbirds, butterflies, larval host
- Caterpillar hosts
- ~58 butterfly & moth species
- Landscape uses
- naturalizing
- Native states
- AL, CT, DC, DE, GA, IA, IL, IN, KY, LA, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV
Related native plants
More Helianthus species
- Maximilian Sunflower (Helianthus maximiliani)
- Beach Sunflower (Helianthus debilis)
- Swamp Sunflower (Helianthus angustifolius)
- Ashy Sunflower (Helianthus mollis)
- Woodland Sunflower (Helianthus divaricatus)
- Prairie Sunflower (Helianthus petiolaris)