(di-gi-tal' iss)

Common name: Foxglove

Family:Scrophulariaceae, Figwort

Height x width: 2-5' x 1-3'

Growth rate, habit: moderate; upright spikes from basal growth

Foliage: basal rosettes and alternate, entire

Flowers: reds, yellow, white racemes in spring or summer (photo courtesy Missouri Botanical Garden plantfinder)

Hardiness: zones 3-4 to 7-8

Soil: prefer well-drained, organic, moist, tolerate many

Light: part shade, tolerate sun in zones 3-5 if moisture

Pests and problems: anthracnose, fungal leaf spots and root and stem rots, verticillium wilt; viruses; aphids, beetles, mites, mealybugs, nematodes

Landscape habit, uses: borders, shade or woodland gardens

Other interest: genus name means "finger-like" resembling fingers of a glove with ends cut off; family name from fact purpurea was used in 13th century for "scrofulous complaints"

Other culture: biennial and perennial species, remove biennials from garden after they reseed

Propagation: seed, division



ferruginea (ferr-uu-gin' ee-ah)--Rusty Foxglove, zones 4-7, 4-5' x 1-2', brownish red flowers in early summer, biennial

grandiflora (gran-di-floor' ah)--Yellow Foxglove, zones 3-8, 2-3' x 1-2', large yellow flowers in summer, toothed and hairy leaves, adaptable to many conditions (photo courtesy Missouri Botanical Garden plantfinder)

lanata (la-nah' tah)--Grecian Foxglove, zones 3-7, 1-2' x 1', pale white flowers with purplish inner netting in dense raceme, generally perennial

lutea (luu-tee' ah)--Straw Foxglove, zones 3-7, 2-3' x 1', yellow flowers in summer smaller than grandiflora, 4-6" serrated leaves, not heat tolerant

x mertonensis (mer-toe-nen' siss)--Strawberry Foxglove, zones 3-8, 3-4' x 2', rose 2-3" flowers in summer, tetraploid from a cross of purpurea and grandiflora, 6-8" long velvety leaves, generally biennial

obscura (ob-scur' ah)--Willow Foxglove, zones 5-7, 1 1/2-2' x 1', beige yellow flowers with red inner veins, flowers nodding, linear leaves, shrubby habit

parviflora (par-ve-floor' ah)--Spanish Foxglove, zones 5-7, 2-3' x 1', reddish brown flowers in dense cylindrical racemes, flowers in late spring and early summer on unbranched stems, perennial

purpurea (pur-pur' ee-ah)--Common Foxglove, zones 4-8, 4-5' x 3', lavender flowers with purple and white spots in spring, wrinkled and downy leaves, native and naturalized in British Isles, source of heart drug digitalin
Cultivars, other taxa species flowers other
f. albiflora ('Alba') purpurea white  
Excelsior Group purpurea mix, 2-3" long flowers around stalk
'Foxy' purpurea mix, like Excelsior blooms first year 
Giant Shirley Group purpurea pink mottled shades 4-5' or taller
'Gigantea' ferruginea yellowish brown 4-5' tall
'Sutton's Apricot' purpurea apricot, large  
'Temple Bells' grandiflora yellow, smaller than species blooms first year  


©Authored by Dr. Leonard Perry, Professor, University of Vermont as part of PSS123 course.

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