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Helianthus angustifolius

Native Plants

Swamp Sunflower

3 Photos


Summary

Swamp sunflower (Helianthus angustifolius) is a tall, striking plant for the perennial border or naturalistic meadow garden, and is among the last plants to bloom in late autumn. Bright yellow, 2½” wide daisy-like flowers grow on 6’ stems clothed in rich green needle-like, leathery foliage. The clusters of flowers stand out when viewed at a distance or close up. Despite its name, swamp sunflower lives in a wide range of soil moisture conditions. This sun-loving perennial grows well among little bluestem (Schizachyrium scoparium), broomsedge bluestem (Andropogon virginicus), Georgia aster (Symphyotrichum georgianum), aromatic aster (Symphyotrichum oblongifolium), and slender goldentop (Euthamia caroliniana). Zones 5-9.


More Details

  • Plant Type
    perennial 
  • Sun/Shade Conditions
    full-sun 
  • Foliage Character
    deciduous 
  • Soil Moisture
    average-to-wet 
  • Flowering Period
    mid-to-late-fall
  • Soil PH
    acidic 
  • Flower Color
    yellow 
  • Summer Foliage Color
    green 
  • Fall Foliage Color
    green 
  • Fruit/Seed Color
    green