Helianthus angustifolius

Swamp Sunflower; Narrow-leaved Sunflower

Asteraceae (Compositae)

Plant Specifics

Form:Flower
Life Span:Short-lived perennial
Flower Color:Yellow
Fruit Color:NA
Phenology:Winter dormant
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 clusters of plants up to 6 ft wide.
Propagation:Seed or division of a cluster. Seeds are available through the Florida Wildflowers Growers Cooperative.
Availability:Native nurseries, FNPS plant sales, Seed
Light: Full Sun
Moisture Tolerance:
always floodedextremely dry
 (Stays Wet ----- to ----- Usually moist, occasional inundation)
Moisture Tolerance: Stays Wet ----- to ----- Usually moist, occasional inundation
Salt Water Flooding Tolerance:Not salt tolerant of inundation by salty or brackish water.
Salt Spray/ Salty Soil Tolerance:Low/no tolerance of salty wind or direct salt spray
Soil or other substrate:Loam, Sand
Soil pH:Acidic

Ecology

Wildlife:
  

Birds and small mammals eat the seeds.

Insects:
 

Primarily pollinated by bees.  The goldenrod soldier beetle (a.k.a. leatherwing beetle(, Chauliognathus pensylvanicus is a goldenrod pollinator (FL Wildflower Foundation).

Native Habitats:Flatwoods, marsh edges, cutthroat seep.

Distribution and Planting Zones

Natural Range in Florida
USDA Zones

Suitable to grow in:
10A 8A 8B 9A 9B 

USDA zones are based on minimum winter temperatures

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