Purple top, Argentinian vervain, Tall verbena, South American vervain, Verbena patagonica, Verbena bonariensis ‘Buenos Aires’ , Verbena brasiliensis
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.
RHS AGM (Award of Garden Merit)
Purple in Summer; Purple in Autumn
Dark-green in Summer; Dark-green in Autumn
HOW TO CARE
Watch out for
Generally pest free
Generally disease free
Cut back after flowering.
Verbena bonariensis (Purple top) will reach a height of 2.5m and a spread of 0.5m after 2-5 years.
Prairie planting, Beds and borders, Gravel
Grow in moist, well-drained, moderately fertile soil in full sun. Protect with a dry winter mulch in areas with cold winters.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral