Verbena bonariensis also is known as Argentinian Vervain, Verbena Bonariensis ‘Buenos Aires’, Purpletop Vervain, Clustertop Vervain, Argentinian vervain, Tall Verbena, Pretty Verbena part of the Verbenaceae family of plants. It is a herbaceous perennial.
Verbena Bonariensis is native to South America. It grows rather tall about 2m tall with erect branches that have clusters of fragrant purple flowers and a few leaves sparsely spaced. It flowers in summer and fall. Plant Verbena Bonariensis in moist well-drained soil in the sun and cut them down when the flowers are done.