2 named cultivars

perennial RHS Award

Merton's foxglove

Digitalis x mertonensis

The Story

Plant Bio

Digitalis x mertonensis, commonly known as the Merton's foxglove, is a perennial hybrid that features tubular flowers and attractively textured foliage.

Notable for its vibrant orange flowers and its ability to thrive in partially shaded areas.

Uses & Benefits:

Digitalis x mertonensis adds vertical interest with its tall, tubular lavender flowers, perfect for cottage gardens and wildflower borders.

Provides nectar for pollinators like bees and hummingbirds, supporting garden ecology.

Supports local pollinator populations and enhances biodiversity in garden spaces.

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

12 inches

Light

Full Sun, Partial Sun, Shade

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Garden hybrid

Toxicity

High

Planting

How to Grow

Tuck seeds into moist soil in early spring for best germination.
Mist cuttings regularly to maintain humidity and encourage root growth.
Transplant seedlings when they are strong and have developed several leaves.
Space plants 12-18 inches apart to allow for growth and air circulation.
Mulch around plants to retain moisture and suppress weeds.
Fertilize with a balanced, slow-release fertilizer in early spring.

Pro Tip

Use well-drained, slightly acidic soil for optimal growth and vibrant blooms.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil evenly moist 🌱
Prune dead or damaged stems to promote healthy growth
Fertilize in early spring with a balanced fertilizer
Mulch to conserve moisture and regulate soil temperature

Don't

Avoid overwatering to prevent root rot ❌
Do not allow soil to dry out completely
Refrain from heavy fertilization late in the season
Avoid planting in areas with poor drainage

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Mulch
Pest Check
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Tall border plantWildflower meadow accent

Companion Plants

Echinacea RudbeckiaLavender Salvia Coreopsis

Multiply

Propagation Methods

Good to Know

Common Questions

Merton's foxglove questions

What zones can Merton's foxglove grow in?

Merton's foxglove is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Merton's foxglove deer resistant?

Yes — Merton's foxglove is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Merton's foxglove bloom?

Merton's foxglove typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Merton's foxglove need full sun?

Merton's foxglove does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.