This native plant has heavily winged stems. Interesting cones center this autumn bloomer with petals of bright yellow. If this native exists in its native habitat, can grow to 3'.
Traditionally used to treat many ailments. Named by Linnaeus after Helen of Troy, according to the legend, after the flowers sprang up where her tears had fallen.
Performs best in full sun, moist but not wet. Can be cut back in mid summer for a more compact, well branched plant.