This genus contains a dozen or so species of North American perennials from dry prairies and open woodland. On top of stiff stems bloom yellow (the most common color) sunflower-like flowers over a long time from summer to autumn. Grow in a border, meadow, or cutting garden.
Noteworthy CharacteristicsNorth American natives. Hardy and vigorous. Long-lasting cut flowers that resemble sunflowers.
CareGrow in full sun and moderately fertile, humusy, moist but well-drained soil. Stake as needed, and divide every 2-3 years.
PropagationDivide plants in spring or fall, or root basal cuttings in spring. To start from seed, sow in a cold frame in spring.
ProblemsPowdery mildew, rust.