Digitalis
the great survivors
Our
native foxglove Digitalis purpurea is the best known in cultivation
however there are 25 other species and distinct geographic or
varietal forms found throughout Central and Southern Europe.
All make exciting garden plants in sun or light shade. All species
are perennial with the exception of the purpurea and
ferruginea forms.
The foxglove, so much a part of our British countryside, is
perhaps one of the few native plants to be well received in
gardens. They do seem to have the ability to spring up almost
unnoticed, that is until their towering stems dominate the garden.
Once there few gardeners have the heart to remove them, thus
ensuring more in future seasons, for foxgloves are great
seeders.
Most foxgloves prefer a well drained good garden soil, they
are trouble free under good cultivation. It is pollinated by
bees and is commonly found in open spaces such as woods, and
mountain rock. It has been found growing at heights up to 3000
feet.
They are indeed great survivors.
Biennial
Varieties
These plants have a two year life cycle, setting seed after
the flowers.
This section of the family has a large diversity of colour
due to their rather promiscuous behaviour both in the wild
and in gardens!
There are only two biennial species D.
purpurea and D. ferruginea
purpurea
f. albiflora (AGM)Classic flowered form pure white flowers,
little or no throat markings. 5'
**purpurea 'Suttons's Apricot' (AGM) Salmon coloured
flowers. 5'
purpurea 'Campanulata Alba' Rather choice pure white
flowers. 4'
purpurea Excelsior Group Unique flowering habit the
flowers are produced all around the tall stately stems. Mix
of colours with throat markings. 7'
**purpurea 'Giant Primrose' Large blousy pale primrose
yellow flowers produced all around the stems. 5' high Stunningly
graceful.
**purpurea Giant Spotted Group Mix of colours this
variety has very heavily spotted throat interiors. 6' to 7'
purpurea Foxy Group Dwarf growing form which will flower
1st. year from seed in a mix of colours. Reaches 2'
purpurea subsp. nevadensis Recently noted (1986) Dark
rosy purple flowers on branching stems. Not as tall as usual.
Glaucous grey look to the foliage.
ferruginea Tall stems of densely packed flowers in
honey brown, hairy interiors. Branching inflorescence reaching
6' with an attractive winter basal rosette of long dark green
leaves deeply veined.
ferruginea 'Gelber Herold' The flowers are more yellow
in colour. Like Dijon mustard.
ferruginea 'Gigantea' Generally all round larger form
of ferruginea, taller branching stems 7' / 8' and larger base
foliage.
Perennial
Varieties
These can be found from Portugal to Siberia widely across
the Central Balkan area with a large variation in habitat
and climate. Because of their wide distribution and other
factors flower size and flowering times they do not cross
naturally. All the perennial species come true from seed.
That is to say they do not hybridise with each other. With
the exception of Digitalis lutea which can be the host parent
for different flowering hybrids. These are seldom garden worthy
but can be attractive for one or two seasons.
davisiana Introduced from the Eastern Mediterranean
region. Stoloniferous species. Soft yellow flowers, netted
orange. Rare and choice perennial of easy culture 2' Sun average
to well drained soil.(Not always available)
**dubia Silvery-grey hairy leaves with pretty pink
flowers. Loves the hot sunny spots as befits a Spanish Native.
15"
Two new varieties to look our for:
foxy 'Apricot' A new introduction bred from a purpurea
x lutea and being more long lived than originally thought.
Sterile like many lutea crosses but easily divided or increased
by cuttings. Multiple stems of apricot flowers around 2cm
long and slightly thicker than a pencil.
foxy "Pink" The plant differs in that the
flowers are dusky pink, an easy to fit colour in most borders.
Both like good soils in Sun or light shade and will reach
around 3' in flower.
**'Glory of Roundway' Sterile (x mertonensis / lutea cross)
Rich apricot-pink flowers produced on multiple spires, attractive
foliage . Good as a cut flower. Any soil in sun or part shade.
In flower 4' high. Secondary branching flowering stems. Increases
readily by division.
grandiflora (AGM) The large yellow flowered foxglove,
an easy and versatile perennial species. Often herbaceous
in winter. 2' high, average soil in sun or shade. Good for
naturalising in wild areas. Repeat flowering.
grandiflora 'Carillon' Like Grandiflora but more compact.
Soft yellow flowers. produced intermittently all Summer. No
taller than 15". For sun or part shade
'Heywoodii' (sometimes listed as purpurea ssp.heywoodii)
The "Silver" foxglove with white flowers and silver
hairy leaves. Truly beautiful. In a well drained site in full
sun. 18"
lutea Willowy 3' high wands of soft yellow flowers.
Small but plentifully produced. A pretty species for naturalising
in sun or shade.
**'John
Innes Tetra' The sister seedling to x mertonensis and
raised at the same time by deliberately crossing lanata with
grandiflora. The freely produced well proportioned flowers
are yellow marked honey brown. 2' sun or part shade
laevigata Amazing orange yellow flowers netted brown
produced on stems 3' high. Leathery foliage forms attractive
base rosette in winter. A Southern European species, preferring
sun.
lamarckii (sometimes listed as lanata ssp lamarckii
although quite distinct) "Orchid like" soft brownish
white flowers with a pronounced white lip and linear basal
leaves. Very elegant with several wiry flower stems. Sun lover.
2'
lanata (AGM) Orchid like soft brownish white flowers, each
with a small lip arranged on a sturdy upright stem. Popular
and effective perennial which used to be grown commercially
to extract Digitalin. 3'
x mertonensis (AGM) The "Strawberry Foxglove"
Individually the largest flowers the colour of strawberry
puree. Grows well in average to good soil, not too dry sun
or part shade 3' Divide every 2 years or so.
obscura The "shrubby" foxglove a splendid
species from Spain. Rust brown flowers with orange striping
and red flashes. These freely produced on wiry stems. Sun,
good drainage 2'
parviflora (AGM) The "Chocolate" foxglove.
A sound perennial producing many spires of small caramac chocolate
coloured flowers. Large elongated basal rosette which looks
good even in winter. Sun or light shade 3'
thapsi A rare species in cultivation, leaves covered
in light golden hairs. Purple flowers, paler in the throat
and spotted red within. From Portugal and Spain. 18"
Sun or light shade, drained soil.
This
list is not complete as there are around 25 different species
and varietal forms I have mentioned just a few.
For further information on specific plants not mentioned you
can ask for a leaflet to be sent to you, or the full nursery
catalogue. This costs £1-00 and can be sent for through
the post.
Please send 5 x 2nd. Class Stamps to :
The Botanic Nursery Atworth Wiltshire SN12 8HU
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