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The Foxglove is a plant
rich in folklore. The stems bear distinctive nodding bells that
are thought to resemble all sorts of fanciful things and the
plant's common names include 'Fairy Caps", "Goblin Gloves" and
"Witches Thimbles"! The most familiar species is the colorful
biennial
Digitalis purpurea. This showy
plant self seeds so prolifically in some part of the country
that it is considered a weed. However, it is not partial to
growing in Wisconsin gardens and we no longer carry it as we
don't want our customers to be disappointed by plants that don't
perform in our area. Thankfully, there are several other
wonderful members of this Genus that are true perennials and do
thrive in our area.
Digitalis grandiflora (Yellow
Foxglove) stands 24"-30 " tall and bears large lemon yellow
hanging bells very similar in appearance to D. purpurea in every
way but color. Although it stands the same height as the
previous species, the flowers of
Digitalis lutea (Fairy
Foxglove) are petite in comparison and give this plant a
delicate charm.
Digitalis lanata (Grecian
Foxglove) is the shortest of the group at only 15"-20" in height
and has distinctly different flowers that are white with rust
colored venation.
All three Digitalis are
true perennials in our area and prefer to grow in light to
moderate shade in soil that is not too dry. All members of this
Genus are highly toxic and for that reason are never
eaten by deer or rabbits. Ironically, extracts from this plant
are used medicinally to treat heart disease.
Hardy to Zone 3 |