The genus Digitalis is characterized by eye-catching spires of densely arranged, elegant, tubular flowers, which begin opening from the bottom and continue upwards. The flowers occur in a wide range of colors, frequently with spots. Many species self-sow prolifically, a trait that can be considered “naturalizing” or “nuisance,” depending upon the site. There are species suitable for sunny borders, open woodlands, and meadows.
Noteworthy CharacteristicsThese low-maintenance plants bloom with colorful, vertical drama.
CareMost species prefer part-shade in humus-rich soil, but can tolerate anything but extreme conditions.
PropagationSow seed in situ or in a cold frame in spring.
ProblemsSouthern blight, anthracnose, fungal leaf spot.