John Clayton Chapter of the Virginia Native Plant Society’s
Wildflower Spot – October 2007
SWAMP/NARROW-LEAVED SUNFLOWER
Helianthus angustifolius
Swamp sunflower produces a striking
bold fountain of three-inch golden daisy-like flowers,
resembling black-eyed Susan with purple-black disks.
Blooming from August through October along with wild
ageratum, the blue and gold 3-6-feet tall flowers look
wonderful against any green background such as tall shrubs.
Butterflies love the nectar, and later the seeds are eaten
by many eastern birds.
Since the plant branches freely, and
blooms profusely, swamp sunflower is best used in masses in
the landscape. Growing best in full sun, and well-drained
soil, it is native to low wetland areas, and may need some
irrigation in dry weather. This plant is doing well in
tidewater, even with the current dry conditions.
The narrow leaves are stiff and
alternate on the stem, but usually appear opposite lower on
the plant. Native range for swamp sunflower is from Long
Island to southern Indiana.
Expect to find a lot of “volunteers” as
this plant self-sows freely. Also, many plantlets develop
around the base of the plant, providing a growing clump.
Plants are easily propagated by dividing offspring.
By Helen Hamilton, President of the John Clayton Chapter of
the Virginia Native Plant Society
