Argentinian Vervain

Verbena bonariensis

Purple Top, Purple-Top Vervain, South American Vervain, Tall Verbena, Brazilian Vervain, Cluster-Flower Verbena, Purpletop Verbena, Wild Verbena, Butterfly Vervain, Pretty Vervain, Tall Vervain

creative commons icon
by AlanGardenMaster (All rights reserved)
1 of 6
A group of purple Verbena bonariensis flowers
creative commons icon
by AlanGardenMaster (All rights reserved)
1 of 6
Verbena bonariensis is a tall airy perennial that can provide architectural height at the back of a border or an attractive see-through screen along pathways. Also known by the common names Argentinian vervain and purple top, this species is a popular garden plant. It has been awarded a Royal Horticultural Society (RHS) Award of Garden Merit for its long flowering period. It is also part of the RHS “Plants for Pollinators” initiative to showcase plants which support pollinator populations by providing ample amounts of nectar and/ or pollen. A great choice for encouraging pollinating insect wildlife into your garden! It produces an abundance of small purple flowers, arranged on branched stems in structures known as umbels. These are clusters which radiate from a central stem point, producing flowers on stalks of roughly equal length, to form a flattened or slightly rounded, horizontal surface of blooms. This plant typically grows to 2m in height, it has an open form and sparse foliage.
Free download for your phone or tablet
Download on the App StoreGet it on Google Play

Planning

Difficulty

Moderate

Flowering time

Summer, Autumn

Harvesting

Flowers can be cut for floral arrangements.

Propagation

Seed

Either sow in pots at 18-21°C in autumn to early spring or let it self-seed. Transplant seedlings when leaves are large enough to handle without damage, place into individual pots or plant out to the final position.

Special features

Attracts butterflies

Attracts bees

Attractive flowers

Attracts useful insects

Special features

Origin

South America.

Environment

Light

Full Sun

Soil moisture

Moist

Soil type

Chalk, Clay, Loam, Sand

Soil PH preference

Acid, Alkaline, Neutral

Frost hardiness

Half-Hardy

Uses

Notes

Suits prairie style planting either in flower borders/beds of informal cottage or gravel gardens.

Personality

Family

Verbenaceae

Flower colour

Purple

Scent

None

Problems

Generally pest & disease free.

Companion plants

Free download for your phone or tablet
Download on the App StoreGet it on Google Play

Knowledge and advice

Search our ever-growing knowledge base to find plants and information. Find out about pests and diseases you should be keeping an eye out for. Watch How to videos or follow step by step guides for tasks in the garden. Free download for your phone or tablet.
Download on the App StoreGet it on Google Play