Scrophulariaceae

Digitalis

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Digitalis obscura

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.

Species and cultivars

More From the Plant Guide

Winter Interest

Partial Shade

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