Genus Digitalis (Foxglove)

Digitalis obscura Photo/Illustration: Courtesy of Bluestone Perennials

dij-ih-TAL-iss Common Name: Foxglove

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 characteristics: These low-maintenance plants bloom with colorful, vertical drama.
Care: Most species prefer part-shade in humus-rich soil, but can tolerate anything but extreme conditions.
Propagation: Sow seed in situ or in a cold frame in spring.
Problems: Southern blight, anthracnose, fungal leaf spot.

Species, varieties and cultivars for genus Digitalis

Digitalis grandiflora
(Yellow foxglove) Be the first to rate this plant

Hardiness Zones:

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Originating in mountainous woodland and stony habitats from Europe to western Asia, yellow foxglove is tolerant of dry shade but flourishes with moisture. Arising in midsummer from neat clumps of fine-toothed foliage, a mass of soft yellow open bells, speckled brown inside, blooms along one side of a 3-foot-tall stem. Usually described as a perennial, it is more accurate to call it a biennial or short-lived perennial. If the flowering stalk is cut down after blooms have faded, it may rebloom in the fall. When a few flower stalks are left, the plant self-seeds. 

Digitalis obscura
(Sunset foxglove, Willow-leaved foxglove) Be the first to rate this plant

Hardiness Zones:

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This foxglove has long-lasting flowers in seductive shades of burnt umber. Its glossy, linear leaves are evergreen in mild climates, but turn brown in colder climates.

Digitalis purpurea 'Pam's Choice'
(Common Foxglove) Be the first to rate this plant

Hardiness Zones:

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This is a biennial or short-lived perennial, which may last longer and rebloom if deadheaded. It sports dramatic blossoms in contrasting colors in spires reaching six feet high in rich soil, but more likely to 3 or 4 feet. 

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