Dark Mullein – Hardy Perennial for Herbaceous Borders UK

Dark Mullein (Verbascum nigrum) – Hardy Perennial with Rich Yellow Flower Spikes UK

Usually available: spring & summer
Life cycle: hardy perennial
Height: 90–150cm
Bloom colour: rich yellow with orange-purple anthers
Position: full sun / light shade
Spacing: 45–60cm apart
Soil preference: well-drained, moderately fertile soil

You will receive 1 Dark Mullein plug plant, organically grown and ready to establish in your garden.

All of our herb plants are grown organically using certified organic potting mixes and fertilisers.

A Striking Cottage Garden Perennial for UK Borders

Verbascum nigrum is a beautiful and reliable hardy perennial, much admired in traditional herbaceous borders. In its first season, it forms a neat rosette of dark green leaves. As it matures, it sends up elegant upright spikes of rich yellow flowers, each marked with distinctive deep orange to purple anthers.

Well suited to UK gardens, Dark Mullein brings vertical structure and long-lasting summer colour to borders, wildlife areas, and cottage garden schemes. Its tall, airy flower spikes sway gracefully in the breeze, adding movement and natural charm.

Why Grow Dark Mullein?

• Hardy perennial suitable for UK climate

• Elegant yellow flower spikes

• Striking orange-purple anthers

• Ideal for herbaceous borders

• Pollinator friendly blooms

• Low maintenance once established

This is a long-flowering perennial that adds height and contrast among softer planting.

Garden & Wildlife Value

Ornamental impact:
A graceful architectural plant perfect for mid-to-back border planting.

Pollinator support:
The open flowers are attractive to bees and beneficial insects throughout summer.

Naturalistic planting:
Blends beautifully with cottage garden perennials and wildflower-style schemes.

Growing Dark Mullein in the UK

Dark Mullein performs best in:

• Full sun for strongest flowering

• Well-drained soil

• Herbaceous borders or wildlife gardens

• Open positions with good airflow

It is fully hardy throughout the UK and tolerant of average garden soils. Deadheading can prolong flowering, or allow seed heads to form for a more natural look.

Spacing plants 45–60cm apart allows for healthy upright growth.

Physical Characteristics

Height: 90–150cm
Spread: 45–60cm
Foliage: dark green basal rosette
Flowers: rich yellow blooms with contrasting orange-purple anthers
Growth habit: upright, clump-forming perennial

With Dark Mullein, your garden gains elegant vertical interest, vibrant summer colour, and pollinator-friendly blooms. A beautiful addition to UK herbaceous borders and naturalistic planting designs.

Grow beautifully. Grow organically. Grow with The Healing Herb Garden.