Verbena 'Bonariensis' (Purple Top Vervain)

Delivery in 3-5 working days
In-stock summer flowering clearance items are delivered in 3-5 working days.

Not in season

Notify me when this is back in season
1 bare root
£7.89 £4.65
£4.65 each
Save 41%
3 bare roots
£19.89 £11.93
£3.98 each
Save 40%
6 bare roots
£35.19 £18.65
£3.11 each
Save 47%

Free delivery on £40+ orders

Carbon-Neutral Delivery

Our "Bloom or Bust" Promise

Verbena bonariensis adds height without heaviness, threading its airy purple flower heads through borders while feeding pollinators for months.

Verbena bonariensis is a much-loved architectural perennial with tall, wiry stems topped by clusters of small lilac-purple flowers that seem to float above surrounding planting from midsummer into autumn.

Its open, airy habit lets it weave beautifully through grasses and herbaceous borders without blocking the view, while the nectar-rich flowers are excellent for bees, butterflies and other pollinating insects.

Plant in full sun in moderately fertile, well-drained soil, choosing a warm position where the stems can rise naturally among neighbouring plants. Avoid sites that stay wet in winter.

Water while plants establish and during long dry spells. Leave stems in place over winter for interest and extra protection, then cut back in spring as new growth begins.

Botanical name Verbena bonariensis
Flower colour Lilac-purple
Tuber size Grade I (Top Size)
Established height 150–180 cm
Established spread 45–90 cm
Plant spacing 3–5 per m²
Leaf colour Green
Habit Upright, airy, clump-forming
Life cycle Short-lived perennial
Flowering period July–October
Hardiness Half hardy
Suitable for Borders, wildlife gardens, cut flowers

Where to Plant:

Choose a sunny, open position with well-drained soil. Verbena bonariensis performs best in warmth and light, and its airy stems are ideal for weaving through mixed borders and wildlife-friendly planting.

How to Plant:

Plant bare roots or young plants into prepared soil in spring, spacing them to allow for branching stems and good air circulation. Avoid heavy, poorly drained ground, especially in winter.

Aftercare:

Water while plants establish and during prolonged dry spells, but avoid overwatering once growth is underway. Leave old stems in place over winter in colder areas, then cut back in spring as new growth appears.

Planting and Flowering Calendar

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Planting
Flowering

Key Features

Packed in paper

Packed peat-free

Great for Shade

Attracts wildlife

Drought tolerant

Good for cutting

Verbena 'Bonariensis' (Purple Top Vervain) - Harding & Bloom

Verbena 'Bonariensis' (Purple Top Vervain)

£7.89 £4.65
£7.89 £4.65

The Finest Bulbs

We partner with elite growers to provide only top-size, professional-grade bulbs. Bigger bulbs mean stronger roots and more spectacular blooms.

A Greener Thumb

We are committed to a healthier planet, using sustainable growing practices and mindfully chosen, recyclable packaging.

An Unrivaled Selection

Discover an extensive collection of both timeless classics and rare, exclusive varieties to create a garden that is uniquely yours.

Our Bloom Guarantee

We stand behind our quality. From our expert planting guides to our customer service, we ensure your gardening success.

Kind Words from Our Gardeners

Arrived quickly and well-packaged. Planted them in some pots on the patio and they all came up. Look beautiful. Thank you!

Careane Wallace

Oxfordshire, UK

The bulbs arrived beautifully packaged and you could just tell they were excellent quality. We had the most wonderful display of daffodils this spring on our patio. Simply stunning. Will definitely be ordering again

David P

Kent, UK

I ordered the mixed hyacinth collection and the scent in my garden this April was absolutely heavenly. Every single bulb produced a strong, beautiful flower and the colours were stunning together. A fantastic purchase, I'll be back for more next year!

Eleanor R

Somerset