A wide variety of colors, some with bi-colored faces, and some with whiskers.
A very ornamental plant. If the plants are cut back after flowering they will flower again in late summer.
Easily grown in any fertile soil in full sun or partial shade. Prefers a well-drained moisture-retentive soil. Tolerates sandstone and limestone soils but becomes chlorotic if the pH is too high. Prefers a pH between 6 and 6.5.