Helianthus angustifolius
swamp sunflower; narrow-leaved sunflower
Asteraceae (Compositae)
Plant Specifics
Form:
flower
Size:
5-8 ft
Life Span:
short-lived perennial
Flower Color:
yellow
Fruit Color:
Phenology:
Winter dormant. Blooms in fall.
Noted For:
Showy Flowers
Landscaping
Recommended Uses:
Plant as a buffer along the edge of wetlands, in a swale, or any other open wet site. Forms clones of plants up to 6 ft wide.
Considerations:
Light:
Full Sun
Moisture Tolerance:
Stays wet ---- to ---- Usually moist, occasional inundation
Salt Water Flooding Tolerance:
Unknown
Salt Spray/Salty Soil Tolerance:
Some tolerance to salty wind but not direct salt spray
Soil or Other Substrate:
Sand, Loam
Suitable to Grow In:
8A,8B,9A,9B
Ecology
Wildlife:
Pollinators, Birds, Mammals
Primarily pollinated by bees. The goldenrod soldier beetle (a.k.a. leatherwing beetle(, Chauliognathus pensylvanicus is a goldenrod pollinator ( FL Wildflower Foundation ).
Birds and small mammals eat the seeds.
Native Habitats:
Flatwoods, marsh edges, cutthroat seep.
