Foxgloves are popular in a host of planting styles from traditional cottage gardens to the contemporary perennial plantings of Piet Oudolf and the New Perennial movement.
There are 25 species and forms in the genus Digitalis, found throughout Europe, northwest Africa and central Asia in a range of habitats from woodland clearings to sub-alpine meadows. The only true biennial is Digitalis purpurea and its cultivars, although some modern purpurea foxglove hybrids are classed as short-lived perennials.
Most foxgloves, including ancient species and modern hybrids, are perennials, whose lifespan varies according to the growing conditions but is usually three to five years.
Perennial foxglove species are divided into two groups: herbaceous perennials, such as Digitalisgrandiflora and Digitalislutea, which die down during cold winters and those retaining an evergreen rosette, including Digitalisparviflora and Digitalisferruginea.
When do foxgloves flower?
The foxglove species flower from early to midsummer but the new hybrids are sterile, so flower for a longer period – from spring to autumn and beyond during mild winters – because they do not set seed. They also tend to swap elegance for robustness, producing denser spikes of more upright flowers.
Where to plant foxgloves
The natural elegance of all the cultivated species can be used to add lightness, romance or architecture, depending on the scheme. Smaller species, such as Digitalislutea and long-flowering modern hybrids, including Digitalispurpurea ‘Dalmation Peach’ with its subtle, pale-apricot flowers, are ideal for growing in pots in courtyard gardens.
The best foxgloves to grow for colour and structure
Digitalis lutea
A small foxglove, ideal for containers or the front of a border, with slender spikes of primrose-yellow flowers. Hardy and thrives in sun or shade. Comes true from seed, so good for naturalising.
Height 60cm. Hardiness RHS H6, USDA 3a-8b.
Digitalis ‘Martina’
A recent introduction producing multiple elegant spikes of soft-pink flowers, it is ideal in containers or borders. Cut back fading flower stems to prolong the flowering season.
An elegant, short-lived and well branched perennial foxglove, that flowers in its first year, with dense, sturdy spikes of evenly spaced, outward-facing flowers. These are lavender purple with maroon interior spotting and evenly spaced around an upright stem. Self-seeds freely.
Height 90cm. Hardiness USDA 4a-9b.
Digitalis ‘Polkadot polly’
Another robust plant from the Polkadot series, producing masses of hanging, pale-pink flowers on willowy stems. A sterile hybrid, it has a long flowering season from early summer onwards.
Height 90cm. Hardiness USDA 4a-8b.
Digitalis ‘Sutton’s Apricot’
Apricot and deep-pink buds gradually open to soft apricot-pink foxglove flowers. Flourishes in sun or part shade and self-seeds freely in undisturbed soil. Excellent cut flower.
Height 1.2m. Hardiness RHS H7, USDA 4a-8b.
Digitalis ‘Pam’s Choice’
Eye-catching and dramatic with sturdy spires of large, white flowers with a rich maroon throat. Bred from seed of a foxglove found on a compost heap at Wayside Gardens in South Carolina.
Height 1.5m. Hardiness USDA 4a-8b.
Digitalis purpurea Foxy Group
This compact group of foxgloves produces a mix of pink and white blooms with bold, purple speckled throats, all around the stem. Blooms in the first year from a late-winter sowing. 90cm.
Height RHS H7. Hardiness USDA 4a-8b.
Digitalis ‘Polkadot Pippa’
A robust foxglove plant producing intense rose-coloured flowers, with a golden throat and pointed lip. Flowers from late spring to first frosts. Flourishes in moist, well-drained soil in sun or part shade.
A foxglove of considerable presence and poise. Its dense spikes of upward-pointing, pure-white flowers – their throats lightly speckled with burgundy – emerge from creamy-yellow buds and are held upright all round the stem.
Densely packed spikes of deep purple-pink foxglove flowers with attractive, raspberry-pink blotching in the throat. Produces blooms all-round the stem, making it ideal for containers.
Compact,with deep-green leaves and slender spikes of bronze-brown flowers. If this foxglove’s mainstem is cut back after flowering, further smaller flower spikes will grow. Thrives in sun or part shade.
An elegant, majestic plant with dense spikes of large flowers in shades of purple to lilac, rose and white, with attractively mottled throats. Ideal for the back of a border or as a cut flower.
This elegant, understated short-lived perennial foxglove produces small bells of subtle pink around the stems. Ideal in a pot or as a companion to pale-blue campanulas.
Height 60cm. Hardiness USDA 4a-8b.
Digitalis grandiflora
This clump-forming perennial boasts large, pretty, primrose-yellow flowers with pointed petals. Its soft tones combine well with almost any other colour. Herbaceous so dies back in winter.
Perennial foxglove sub-shrub with leathery, deep-green leaves. The orange-to-brown, funnel-shaped flowers are marked in the throat with netted veins and spots. Needs full sun and excellent drainage.
Gertrude Jekyll used this form extensively in her white planting schemes. The pure-white foxglove flowers, with light freckling in the throat, are ideal for illuminating dark corners.
Striking, honey-coloured flowers, which are attractive to bees, are densely packed around the stiff spires of this elegant foxglove perennial. An architectural plant in both summer and winter.
Small, pale-tan flowers, marked with violet-brown veins, and held on broad spikes, spring from a rosette of dark-green leaves and have a protruding curved, white lip. This foxglove is covered in tiny hairs.
Height 1m. Hardiness RHS H5, USDA 3a-9b.
Where to see and buy foxgloves
The Botanic Nursery, Stonar School Walled Garden, Coombe Lane, Atworth, Melksham, Wiltshire SN12 8NU – Open March to October, offers the widest range of foxgloves in the British Isles and holds the National Collection.
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