Overview
Verbena bonariensis is a plant with a clump-forming, columnar upright habit in the genus Verbena, part of the Verbenaceae family, with deciduous foliage. Verbena bonariensis grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H4. Suggested uses include borders, containers and hanging baskets.
About
Verbena bonariensis, commonly known as the purpletop vervain, clustertop vervain, Argentinian vervain, tall verbena or pretty verbena, is a member of the verbena family cultivated as a flowering annual or herbaceous perennial plant. In United States horticulture, it is also known by the ambiguous names purpletop and South American vervain.
Wikipedia contributors, CC BY-SA 4.0 — Verbena bonariensis
Growing conditions
Best soil and position for Verbena
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Verbena bonariensis size, habit and characteristics
- Habit
- Clump-forming, columnar upright
- Foliage
- Deciduous
- Suggested uses
- Borders, containers, hanging baskets
Care notes
Pruning and caring for Verbena bonariensis
- Propagation
- Seed, semi-ripe cuttings, division
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Verbena bonariensis?
Verbena bonariensis prefers full sun. It suits sheltered positions.
What soil does Verbena bonariensis need?
Verbena bonariensis grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Verbena bonariensis hardy in the UK?
Verbena bonariensis has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Verbena bonariensis?
Seed, semi-ripe cuttings, division.
More in the Verbena genus
- Verbena 'Firecracker'

- Verbena bonariensis 'Lollipop'Purpletop Vervain
- Verbena bonariensis 'Purple Haze'
- Verbena officinalis 'Bampton'vervain 'Bampton'

- Verbena 'Kurpfalz'
- Verbena 'Purple Haze'Verbena
- Verbena 'Triffids Purple Haze'