Verbena bonariensis

Verbena bonariensis

An airy, architectural perennial that brings height, movement and pollinator activity to summer borders.

Tall, slender stems carry clusters of small violet-purple flowers that seem to float above the border from midsummer well into autumn. The open, transparent habit allows light to pass through, making it perfect for weaving through other plants without blocking them. Bees, butterflies and other pollinators absolutely adore the nectar-rich flowers, so it quickly becomes one of the busiest plants in the garden.

Verbena bonariensis thrives in full sun and well-drained soil, coping particularly well with dry conditions once established. It grows tall but remains light and elegant rather than bulky, making it ideal for prairie-style planting, cottage gardens, and wildlife-friendly borders. It will often gently self-seed around the garden, creating natural drifts that look beautiful without becoming invasive.

Specifications

• Plant type: Hardy perennial (often short-lived but self-seeds)

• Flower colour: Violet-purple

• Flowering period: July to October

• Height: approx. 120–150 cm

• Spread: approx. 40–60 cm

• Position: Full sun

• Soil: Well-drained soil, tolerates poorer and drier soils

• Hardiness: Hardy in most UK gardens

• Pollinator friendly: Excellent for bees and butterflies

Note for Isle of Wight planting
Verbena bonariensis performs exceptionally well in the Isle of Wight’s sunny, free-draining gardens. The island’s mild climate often allows it to overwinter reliably, and seedlings frequently appear the following spring, helping create beautiful natural drifts.

Ideal Companion Plants from The Green Standard Range

• Salvia ‘Nachtvlinder’, deep violet flower spikes that echo the purple tones while adding structure

• Nepeta ‘Blue Wonder’, soft mounds of blue flowers that fill the lower border beneath the tall stems

• Achillea ‘Lilac Beauty’, flat pollinator-friendly flower heads that complement the naturalistic planting style

• Calamagrostis ‘Karl Foerster’, upright ornamental grass that adds height and movement behind the airy stems

🌟 The Green Standard Tip
Allow a few flower heads to go to seed at the end of the season. You’ll often get new plants appearing naturally the following spring, perfect for filling sunny borders or sharing with friends.