Digitalis - Foxglove
|DP03-A3||Digitalis ferruginea 'Gelber Herold'||$2.20|
|DFGH-A7||Digitalis ferruginea 'Gigantea'||$2.00|
|DI76-A9||Digitalis parviflora 'Milk Chocolate'||$2.00|
|DPG4-A1||Digitalis purpurea 'GloxiniaefloraThe Shirley'||$1.99|
|DIGAU||Digitalis lutea ssp. australis||$2.00|
|DIGCB||Digitalis ambigua 'Cream Bell'||$2.95|
All parts of the plant may cause severe discomfort if eaten, contact with the foliage may irritate the skin. Plants are effected by Southern blight, anthracnose, Fungal leaf spots,
Digitalis is an example of a cardio-active or cardiotonic drug, in other
words a steroid which
has the ability to exert a specific and powerful action on the cardiac muscle in animals, and has
been used in the treatment of heart conditions ever since its discovery in 1775. Over 3 million Medicare beneficiaries were estimated to be using digitalis in 1987.
These plants are said to repel deer?
Aphids and Beetles, including rose chafer and Japanese beetle, feed
Seeds germinate in ten days at 65-75F. ><180,000 seeds per
once. Do not cover seed, light helps gerimation. Perennials species
can be divided in spring or midsummer after flowering.
Below is the current list of plants that I know that are in cultivation.
Digitalis amandia = D. purpurea
Digitalis amandiana = D. purpurea
Digitalis ambigua = D. grandiflora
Digitalis canariensis = Isoplexis canariensis
Digitalis eriostachya = D. lutea
Digitalis grandiflora SUBSPECIES peloponnese
Digitalis kishinskyi = D. parviflora
Digitalis lamarkii syn D.orientalis
Digitalis x mertonensis = D.grandiflora x D. purpurea
Digitalis x purpurascens = D. lutea x D. purpurea
Digitalis orientalis = D. grandiflora
Digitalis purpurea FORM albiflora
Digitalis purpurea SUBSPECIES heywoodii
Digitalis x grandiflora 'John Innes Tetra'
Digitalis have a great vertical effect in the garden with classic charm. The really ornamental forms of D. purpurea are showy and put on one of the best floral displays around. D. purpurea has many different seed strains that have been around for a number ot years., these include those listed below.
Digitalis purpurea = A
classic BIENNIAL that grows leaves and roots the first year and flower
the second year and then die after setting seed. Start seeds early
so that you get the biggest plants possible. Or if you want smaller plants
start later in the year and keep plants crowded. Plant out in late
summer were you want them to grow or grow them in pots. Seed started
in late summer or fall might not bloom the next year but the
This species is very variable with many different forms in the wild , they are native to South West and Western Europe, are hardy in zones 4-8 and grow from 3-6 feet tall.
D. purpurea tends to have one sided, tall flowering spikes with tubular flowers of purple, pink or white. The flowers are spotted or blotched inside with maroon or purple. sow annually for yearly displays, plants some times self sow and some times are short lived perennials. cut flower spike off to promote a second weaker flush of flowering. This species Make's a very showy cut flower. Hummingbirds will feed on them. flowers from early summer to mid summer. The true species is pink with heavy mottled flowers. The leaves are wrinkled and softly hairy, large and broad, Having long stems (petioles) becoming sessile (with out stems) as they progress up the flowering stems. There are perennial forms in the wild from south west Europe and Corsica.
For best flower display -water well but do not water log the soil. Plants are found on acidic soils in woods and on rocky slopes. Plants bloom in June to september. Plants are easy to grow in all soils except pure limestone.
Digitalis purpurea (COMMON foxglove) seed strains. seed germinates in 7-15 days at 70 degrees F. do not cover seed, light is helpful to germination.
Digitalis purpurea form alba or albiflora :Gorgeous white form.
D. amandiana = This is a form of D. purpurea from Portugal and Spain that has long lasting pink to strawberry colored flowers. Zones (5) 6-9.
D. purpurea 'APRICOT BEAUTY' = Pastel shades of apricot with some spotting on 3.5 feet to 48" tall. Makes a nice cut flower. zones 4-10. One of the best for the deep south. 325,000 seeds per oz.
D. purpurea 'DWARF SENSATION' = Three to four feet tall with three inch long flowers packed densely into the flowering spike.
D. purpurea? 'CARILLON' = Very dwarf plants growing 16" tall. Plants have smaller yellow bell shaped flowers. Said to be an outstanding smaller garden plant.
D. purpurea 'EXCELSIOR' = Three to four or even five feet tall with flowers carried almost horizontal thus revealing the showy spottings and dots. whites, Soft yellow, pinks, darker rose. great as a cut flower. zones 4 -8. 180,000 seeds per oz.
D. purpurea 'DWARF EXCELSIOR' = Sold as a mixture of colors on 20-24" tall plants.
D. purpurea 'FOXY' = "All American Winner" This plant some times acts like a annual blooming 5-6 months after sowing. Plants grow 36" tall and come in shades of carmine, red, pink, creamy yellow and white. Solid colors with flowers heavily spotted with maroon dots. zone 4-8, 200,000 seeds per oz.
D. purpurea 'GLITTERING PRIZES' = comes in a wide range of colors and grows 4-6 feet tall. zones 4-8. plants have spotted and blotched mouths.
D. purpurea 'GIANT SHIRLY' = sny p. gloxiniaeflora 'THE SHIRLEY' Has huge, long bell shaped flowers of white, shell pink, rose and darker rose. Plants grow 3 to 5 feet tall and have crimson or chocolate spotting. This foxglove is a very showy one grown in pots.
D. purpurea? 'GELBA LANZE' = "Yellow Spear" A form from Europe with pale yellow flowers. Hybrid origin?
D. purpurea 'GLOXINIODES' = Salmon pink, creamy yellow ,purple and pink flowers that are wide open and have a frilly marginated mouth. Lots of spots and blotches in the mouth of this flower. Plants grow 5-6 feet tall.
D. purpurea 'PAM'S CHOICE' - This is a selection form Parks Seed/Wayside gardens. White flowers of good size with deep maroon throats and maroon spots and blotches. Plants grow 3-4 feet tall and are said to come true from seed if isolated from other colors. looks like a nice color addition to this group of plants with densly crowded flowering spikes.
D. purpurea 'PELORIC'
= sny p. campanulata. Huge open faced flower up to 2" across crowded
into a short dense spike. said to be some what like a "Canterbury Bell'
like bloom. flowers much larger but lacking the nice "fox glove"
shape. 4-6 feet tall. Zones 4 -8.
D. purpurea 'PRIMROSE CAROUSELtm' = A seed selection producing short 30' tall plants with primrose -yellow flowers that have nice speckled rusty red throat spots. Plants are said to have flowers spaced a little more evenly around the stem than other forms. From Thompson & Morgan seeds in England. Is 'GIANT PRIMROSE' the same plant?
D. purpurea 'SUTTON'S APRICOT' = Has apricot pink flowers. Might be the same as D. p 'APRICOT"
D. purpurea subspecies? heywoodii = Said to be more perennial than most forms, with soft pink flowers with yellow throats and purple spots or flowers in some forms creamy white or even lightly yellow. 30" tall. Native to southern Portugal growing on granite out croppings and flowering in June. Leaves very white woolly. Zones (4)5 -8 .
D. PURPUREA subspecies mariana = Plants have white woolly leaves with purplish pink flowers. flowers are glabrous outside, native to south central Portugal and north east Portugal. Plants are found growing on rocky slopes and dry plains. flowering in summer.
Digitalis cariensis = Plants grow 24" tall and have compact spikes of medium to small yellow flowers. From Turkey.
Digitalis davisiana = A Perennial with linear lance shaped leaves. Leaf edges finely toothed and leaves hairless and mid green in color. Plants have pale yellow flowers that are 1.5" long with orange to purple veining and having a protruiding lower lip that ia hairy. Blooming in early summer on 30 to 40" tall racemes. Native to turkey and hardy in zones 8-10.
Digitalis dubia = A perennial species with wrinkled, lance shaped, dark green leaves in rosettes that have white wolly indersides. Flowers are born on 10 to 18" stalks and are purplish pink or off white with lots of spots in side. flowering in early summer( June ). Plants are native from Spain. Zones 8-10.
Digitalis eriostachya = Plants grow 36" tall and 8" wide and is the tallest of the small yellow flowered foxgloves. said to be a good perennial that can be grown in sun or light shade. Use in the wild flower garden or as a border plant to give you some tall spikes of soft yellow. Plants have textured rosettes of almost glabrous dark green leaves, softly hairy. Tubular yellow flowers. Might be the same as D. Lutea.
Digitalis ferruginea= (RUSTY FOXGLOVE) dij-i-TAH lis fe-roo-GIN-ee-a. A robust growing biennial or short lived perennial from South East Europe to Turkey and Lebanon and the Caucasus. Growing in open woods and in grassy clearings or on rocky slopes and road sides. Dark green leaves growing in rosettes are lance shaped. flowers are golden brown, 1.5 inches long with red brown veins. Plants bloom in mid summer. Hardy in zones (4) 5-7. Four feet tall and 18 inches wide with leafy bracts on the flowering spikes. For well drained dry soils in full sun or part shade. Some strains have reddish colored flowers. Makes an impressively distinct background planting.
D. ferruginea 'Gigantea'- This form has larger flowers
that are yellowish brown and grows to 4-5 feet tall.
D. ferruginea 'Kirk Island' - This plant has pure yellow flowers and grows 3-5 feet tall.
D. ferruginea 'Yellow Herald' - "Gelber Harold". Plants are 4-5 feet tall and have yellow flowers on sterdy stems.
D. ferruginea? 'Gelba Lanze' = "Yellow Spear" A form from Europe with pale yellow flowers. I have been informed that this should belong here, by some one that knows more about it than me. Any one have seed they want to trade or sell so that I can make sure? It looks like it might be a hybrid?
Digitalis grandiflora (YELLOW
FOXGLOVE) dij-i-TAH-lis grand-di-FLO-ra This plant is
clump forming and a short lived perennial or some times biennial.
Leaves are finely toothed with prominent veins, mostly hairless ( I have
had forms with densely hairy leaves too) and often glossy. Leaves are also
mid green in color and 5-10 inches long, narrow to triangular shaped.
Flowers are large- about 1.5 to 2 inches long - well spaced on the
stems and prominently located on on side of the stems and pale yellow in
color with brown veins inside (some forms have no veining). blooming
time is early and midsummer. Flowers are downward facing with wide mouths.
These plants are attractive and showy in the open woodland or on a grassy
slope. Many forms are long lived in the garden. This foxglove
grows 2-3 feet tall and 18" wide. Native to Southern Europe to Siberia
and Turkey. Found in open woodlands. Zones 3-8. Grow
from seeds planted in a warm humid container 75F. or make divisions in
spring or after flowering. I think that this plant is best grown as a
biennial, Just collect seed and start a few new plants every year. Plant in bright shade or sun.
D.grandiflora 'Temple Bells' is a larger flowering
cultivar of this species.
D.ambigua (grandiflora) 'Carillon' = A dwarf seed strain that grows 12" tall and has smaller yellow flowers, may bloom the first year. may also have perennial tendencies or act as an annual.
Digitalis x grandiflora 'John Innes Tetra' = A cross between D. lanata and D. grandiflora. tetraploidy hybrid with nice looking foliage and rose colored flowers.
Digitalis laevigata Clump forming perennials native
to the western and Central Balkans. Plants are hairless with odovate shaped
leaves and mid green colored basal leaves. flowers are on loose racemes
and are held straight out horizontally from the stems. Flowers
are brownish yellow in color and 1.5 inches long, the lower lip of the
flowers are white in color and reddish brown veins and speckles fill
the mouth of the flowers. Flowering occurs in mid summer on 3 foot tall
plants that are 18" wide. This species does best on limestone soils and
in a open wood land setting. In the wild plants from the northern
part of it's range tend to have larger flowers than the plants from the
southern part of it's range which have flowers .5-.75 inches long.
Digitalis laevigata subspecies graeca: Flowers are apricot bronze with white lips and red veins. This plant has many smaller flowers than the species with fine basal foliage. 30" tall.
Plants are native to Thessaloniki southwards. Plants like a warm well drained soil.
Digitalis lamarkii = syn D. orientalis. I do not know if this is a valid species. Plants are from Turkey and are found growing in dry rocky valleys or in open forest and scrub. Plants start flowering in May and can be found blooming till August. Plants rise from a woody rootstock forming a tufted rosette on linear leaves 8" long 0.3" wide. Plants have leaf like sepals and are glandular pubescent. Flowers are 1" long with hairy outsides and are whitish in color with reddish dots and veins or even orange throats. Flowers have a protruding rounded lower lip that hangs downward. Flowers are well spaced on thick stems. native to Turkey.
Digitalis lanata (GRECIAN FOXGLOVE or WOOLLY FOXGLOVE) A clump forming biennial or perennial native to Italy, the Balkans, Hungary and Turkey. Leaves are mid green and lance shaped growing to 5 inches long, hairless on their undersides and sometimes white woolly on the veins and having toothed margins. flowers are born in racemes with leafy bracts and are densely packed, blooming from the bottom up wards. Flowers are light or pale yellow cream or more generally light gray-brown or almost white, 1.5 inches long with brown or brown-violet veins and a lighter colored lower lip. The lower lip of the flower is longer than other parts of the flower and drops downward. Flowers woolly pubescent. Stems are many times reddish brown with many leaves. Plants bloom in mid to late summer and grow 24" tall and 10" wide and are evergreen were happy. This species is the source of a cardiac drug called Lanatacide and like all other species of Foxgloves- produces other glycosides. Zones 4-9. or 7-9? (I could use some help here?)
Digitalis lutea (STRAW FOXGLOVE or YELLOW FOXGLOVE)
loo-TEE-a Plants have dark green glossy leaves that are
hairless with serrate teeth. Stems grow 24" tall and produce a large
number of small light yellow flowers that are one inch long. Plants
repeat bloom if dead headed and bloom well in a semi shady spot.
I like this little plant for it's long life and neat tidy appearance with
the flowers hanging down from the tall stems. Plants grow into clumps and
have a graceful habit. They bloom in mid summer. This foxglove does
well in lime alkaloid soils but I have had good success in lightly acid
soils too. The roots of this plant are well branched. Division is easy
in mid summer and so is seed. Native to south west central Europe
to Italy and Spain and on the coast of North west Africa. Zones 3-9.
Digitalis lutea VAR. australis - Has smaller flowers but in most respects is the same as the species.
Digitalis floribunda? = I will put this here for now. Plants have spikes of unspotted sulpher yellow flowers like a larger version of D. lutea. flowers are 1.5" long and plants grow 24" tall.
Digitalis x mertonensis = D. grandiflora x D. purpurea. These plants result from a inter specific cross and are clump growing perennials with glossy dark green leaves. Leaves are prominently veined and are toothed. Leaves are 3-12" long and have lightly hair undersides. Flowers are pinkish buff or salmon pink or some what reddish pink (strawberry). Flowers are large and showy and stand out. Flowers are 2.5 inches long and are born in late spring and early summer. flowering stems are up to three feet tall and plants grow 12" wide or so. Plants come true from seed and are of garden origin and have evergreen foliage. grow in moist but well draining soils that are not to rich in part shade. Makes a great cut flower too. Plants are the result of a colchicine treatment in the mid twenties resulting in a tetraploidy hybrid species. Zones 3-8.
Digitalis micrantha = From southern Italy. Plants have compact spikes of light pale yellow flowers almost like D. lutea but with multiple stems per plant.
Digitalis thapsi = Native to eastern Portugal and Spain. Plants have branched flowering stems with light purplish pink flowers that are pubescent (soft hairs) on the out side. Foliage is dotted with yellowish glandular hairs. similar to D. purpurea, except foliage covered with yellow glandular hairs, thus appearing softly woolly.
Digitalis x purpurascens = this plants is a natural
hybrid between D.lutea and D. purpurea. this plant is reported in Belgium,
Germany and spain. stems are much branched and growing to 3.5 feet
tall. flowers are 1.5 inches long with wide open spreading
mouths and bloom in June to August. Flower color is light tannish
yellow with a few dots in side. flowers are born in tightly packed clusters.
D. 'Glory of Rounday' = A garden hybrid? by D. lutea x D. x mertonensis. this plant looks like the above plant except it has larger flowers.
Digitalis obscura = Plants are native to eastern to southern Spain and Northern Africa. This species is found growing in open woods often on limestone outcroppings. Plants bloom in May to July. Plants have branched shrubby stems up to 40" tall. (one source lists plants with stems only 10" tall) Leaves are hairless and leaves are lance shaped with some plants having linear leaves, gray green in color and entire, 3-6 inches long. Flowers are rust brown to yellow, or orange yellow in color. Flowers are 1" long and have red veins and red spottings in side. Racemes are nodding at the top. Plants grow from 15" to 50" tall, 18" wide and bloom in late spring to midsummer. Native to Spain. Zones 4-8.
Digitalis parviflora = "Mahogany Foxgloves" Heavy foliage of ferruginea, but dense leafy spikes. This species is a perennial from Northern Spain and grows into nice clumps with Dense racemes of dark orangeish brown flowers or petite brownish purple flowers. flowers are .5 to .75 inches long and have a purple brown lower lip. Leaves are dark green, softly hairy, entire or slightly toothed. This species blooms in late spring or early summer. Plants grow 24" tall and 12" wide. Zones 4-9.
Digitalis schischkinii = A nice looking plant with small rusty mudy-brown flowers on spikes that are 3-5 feet tall.
Digitalis viridiflora = I would assume that
the "Foxglove" flowers of this species would be green or greenish
yellow in color- due to it's name. But I am just making a guess here. From
the Balkans found growing in open woodlands. Flowers are greenish-yellow
and are veined. Plants produce multiply spikes of 1/2 to 1 inch flowers
that are densly packed on the spikes which grow 2-3 feet tall. Leaves
have short hairs.