Verbena bonariensis
Botanical name
Verbena bonariensis
Other names
Purple top, Argentinian vervain, Tall verbena, South American vervain, Verbena patagonica, Verbena bonariensis ‘Buenos Aires’ , Verbena brasiliensis
Genus
Verbena
Species
V. bonariensis – V. bonariensis is an herbaceous perennial, with clusters of small, purple flowers from summer to autumn held on tall stems. Leaves are narrow and sparse.
Foliage
Deciduous
Habit
Tall, Upright
Awards
RHS AGM (Award of Garden Merit)
Flower
Purple in Summer; Purple in Autumn
Foliage
Dark-green in Summer; Dark-green in Autumn
HOW TO CARE
Watch out for
Pests
Generally pest free
Diseases
Generally disease free
General care
Pruning
Cut back after flowering.
Propagation methods
Seed
Verbena bonariensis (Purple top) will reach a height of 2.5m and a spread of 0.5m after 2-5 years.
Suggested uses
Prairie planting, Beds and borders, Gravel
Cultivation
Grow in moist, well-drained, moderately fertile soil in full sun. Protect with a dry winter mulch in areas with cold winters.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South
Exposure
Exposed
