#TeachingTuesday: Swamp Sunflower
This week, our plant is Swamp Sunflower, or Helianthus angustifolius. It’s a large, native, herbaceous perennial that grows to about 6 feet tall every year from the ground up. It blooms in the late fall, making it one of the last perennials to bloom before frost. The large plants covered with clusters of bright yellow flowers are striking in a perennial border or naturalistic meadow garden.
Swamp sunflower can live in a variety of soil moisture conditions. It tolerates both wet soils and the salt in coastal areas. It prefers sunny locations, and can often be found growing in roadside ditches in the south. It will gradually spread, but stays in a clump, so you don’t have to worry about it taking over your garden.