swamp sunflower
Helianthus angustifolius
USDA zones6 to 9
SunHandles full sun to partial shade
WaterHandles moderate to wet soil
Size5 to 8 feet tall2 to 4 feet wide
- Growth rate
- Moderate
- Habit
- Herb
- Bloom season
- Summer, autumn
- Bloom color
- Yellow
- Foliage color
- Dark green
- Soil types
- Sand, loam, clay
- Soil pH
- Acid, neutral
Garden uses
Attracts
Notes
Swamp sunflower (Helianthus angustifolius) is a perennial for pollinator gardens, meadows, and rain gardens. It is hardy to USDA zone 6, or down to -10°F (-23°C). This plant likes full sun to part shade and average to wet, sandy, loamy, or clay soil. It is not a favorite of deer, though hungry deer will eat almost anything. It blooms yellow in summer and again in autumn. Butterflies, bees, and birds visit the flowers.
Pairs well with Swamp milkweed, Switchgrass, New York ironweed, and Aromatic aster.
Native range
AL, AR, DC, DE, and 20 more places. See all 24
AL, AR, DC, DE, FL, GA, IL, IN, KY, LA, MD, MO, MS, NC, NJ, NY, OH, OK, PA, SC, TN, TX, VA, and WV.