Photo by: Shirley Denton, Suncoast Chapter FNPS
Photo by: Mark Hutchinson, Hernando Chapter, FNPS
Photo by: Eleanor Dietrich, Magnolia Chapter FNPS
Photo by: Shirley Denton, Suncoast Chapter FNPS

Nomenclature

Common Name:

swamp sunflower; narrow-leaved sunflower

Synonym(s):

Genus species:

Helianthus angustifolius

Family:

Asteraceae (Compositae)

Plant Specifics

Form:

flower

Size:

5-8 ft

Life Span:

Long-lived perennial

Flower Color:

yellow

Fruit Color:

NA

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:

Availability:

Native Nurseries, FNPS Plant Sales, Seed

Propagation:

Seed or division of a cluster. Seeds are available through the Florida Wildflowers Growers Cooperative.

Light:

Full Sun

Moisture Tolerance:

Always Flooded------------------------------------------------Extremely Dry

Coming Soon!

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

Soil pH:

Acidic

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.

Natural Range in Florida:

Comments:

Ethnobotany:

General Comments: