Helianthus angustifolius (swamp sunflower)

Swamp sunflower or narrowleaf sunflower is among the last plants to bloom in late autumn. This tall, striking sun lover is well suited for the perennial border or naturalistic meadow garden. It grows to about 3' tall and thrives in a variety of soil moisture conditions. It flowers from August to November with bright yellow, 2-1/2" daisy-like flowers that stand out from a distance or close up. 

Swamp sunflower is native to south-central and eastern U.S. It is typically found in the coastal plain of the Atlantic and the Gulf, particularly in wet areas. Young stems and leaveds are high in protein and browsed by deer. Seeds are consumed by birds. This plant is a favorite of pollinators, including native bees and fall-migrating monarch butterflies. Host plant for a number of butterfly caterpillars.

BONAP Native Range Map (bright green indicates county native, dark green indicates state native)  

Photo by Kathy Thornton

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