Pink and violet Digitalis purpurea flowers in a summer garden

Plant profile

Foxglove

Digitalis purpurea · Foxglove

Painted bells on tall spires — a summer show for part shade and a magnet for bumblebees.

See care

Verified data

Photographed in Bran

Being tested

Why it’s worth growing

Vertical, romantic and impossible to ignore

Foxglove brings sculptural spires to part-shade beds, loaded with tubular flowers speckled inside like tiny stained-glass windows. Among soft foliage, ferns and woodland plants, it instantly creates rhythm and height.

The classic species is usually a biennial or short-lived perennial: it forms a rosette of leaves in the first year, then blooms and can self-seed. Bumblebees crawl deep into the bells for nectar, and the spots inside mark their way.

Keep in mind: it prefers soil rich in organic matter, moist but well-drained, and a spot sheltered from winds that can flatten the tall spires.

⚠ A highly toxic plant

All parts contain cardiac glycosides. Do not eat it or use it for teas or remedies. Wear gloves when handling the plants and seeds, and keep the plant away from children and pets.

Standardized data

Quick facts

Botanical name

Digitalis purpurea

Common name

Foxglove

Family

Plantaginaceae

Type

Biennial / short-lived perennial

Origin

W and SW Europe to N Morocco

Height

Usually 100–200 cm (3–6.5 ft)The RHS gives up to 1.5–2.5 m (5–8 ft) in good conditions

Spread

10–50 cm (4–20 in)

Exposure

Part shade / sun

Soil

Loamy, rich in humus, well-drained

Moisture

Moist, no standing water

pH

Acid – neutral – alkaline

Hardiness

RHS H7

Bloom

June–September

Color

Purple, pink, apricot, white

Pollinators

Bumblebees and bees

Toxicity

High — all parts

Self-seeding

Frequent

Containers

Yes, large and stable

Cut flowers

Yes, with gloves

Guide calendar

Sowing: the first year builds the rosette

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Sowing in trays●●
Direct sowing●●
Planting out●●
Bloom, the following year●●●●

Depth

Very shallow

Light

Don’t cover thickly

Planting

30–35 cm (12–14 in) between rosettes

First flower

Usually in year 2

The RHS recommends sowing directly or in trays in late spring and planting out toward the end of summer. Small seedlings can be kept protected over their first winter and planted out in spring.

Growing in cold areas

A promising profile for the mountains

The RHS rates Digitalis purpurea H7. That supports using it in cold climates, and in Bran (Brașov County, Romania) I keep separate track of how each plant does.

Initial climate assessment

Winter hardiness

★★★★★

Cool summers

★★★★★

Part shade

★★★★★

Strong wind

★★☆☆☆

Waterlogged soil

★☆☆☆☆

Photographed in my garden, at 770 m (2,500 ft)

The plants shown were photographed in my garden, at 770 m. Every year I note how they overwinter.

In my garden

My experience — Bran, Romania

Altitude

770 m (2,500 ft)

Climate

Mountain / cool

Exposure

South and east

Soil type

Clay

At least two color forms show up in the garden: an intense pinkish purple with a heavily spotted throat, and a pale form in apricot tones. I don’t know the exact variety names yet, and I don’t want to guess them from photos.

Plants photographedPink + apricot

Bloom rhythm

From the lowest bells to the tip of the spire

Kew gives the usual bloom time as June to September. In Bran I note when they bloom, to see how much the cold springs delay them.

General calendar: June–September

J

F

M

A

M

J

J

A

S

O

N

D

The species:

the flowers open gradually from the base of the spire upward

Pollination:

bumblebees are the typical visitors

In Bran:

I’ll fill this in after next summer

Spring

Cleanup and compost

Remove damaged leaves and add compost around the rosette, without covering the center.

Summer

Water and support

Keep the soil moist and stake the spires in exposed spots. Water at the base.

After bloom

Seeds or energy

Cut the spire if you don’t want self-seeding; keep a few seed capsules for continuity.

Winter

Protect small seedlings

Avoid standing water; very young rosettes can overwinter in pots, safe from slugs.

Visual guide

Light, soil and water

Foxglove is an excellent choice for the bright edge of a woodland area or for beds that get sun only part of the day.

☀ Light

Sun

Part shade

Shade

⌁ Moisture

Dry

Moderate

Waterlogged

♧ Soil

Loamy, rich in humus

Moist but well-drained

Tolerates clay, sand and chalk

Sheltered, for the tall spires

Propagation

The most natural route: from seed

Keeping a few spires with ripe capsules lets the plant carry on, which matters for a biennial or short-lived species.

Seeds

The recommended method. Sow on the surface in late spring and keep the mix evenly moist.

● Easy

Self-seeding

Let a few capsules ripen, then thin the rosettes to keep 30–35 cm (12–14 in) between plants.

● Very natural

Division

Not the main method for Digitalis purpurea, which usually behaves as a biennial.

● Not recommended as the main method

Biodiversity and safety

Loved by bumblebees, dangerous if swallowed

Kew and the RHS confirm both its value for pollinators and its severe toxicity. The plant’s beauty calls for simple, firm handling rules.

Value for wildlife

Bumblebees

★★★★★

Bees

★★★★☆

Cottage garden

★★★★★

Part-shade beds

★★★★★

Risks and problems

🔴 High toxicityCardiac glycosides are present in the leaves, flowers, roots and stems. Swallowing it can cause digestive and heart-rhythm problems and can be fatal. Don’t make home remedies.

Slugs

They go for seedlings and young rosettes.

Powdery mildew and leaf spots

They appear more easily with poor airflow.

Aphids

They can colonize the flower spires.

Handling: wear gloves when sowing, cutting and collecting seeds; wash your hands and tools afterward.

Companion planting

What I pair it with in the garden

Soft textures and part-shade plants that let the foxglove spire remain the vertical focus of the planting.

Summer bells, filtered light and the hum of bumblebees.

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