Verbena Purpletop Vervain

Verbena bonariensis, also known as purpletop vervain or tall verbena, is a striking architectural plant prized for its airy form and clusters of small violet-purple flowers held aloft on slender, wiry stems. Flowering from mid-summer through to autumn, it is a favourite in cottage gardens, wildflower meadows and modern perennial borders, where it adds height and movement without overcrowding other plants. Standing 100–150 cm tall, it creates a see-through effect, making it ideal for layering among shorter perennials.

Its long, strong stems and small, long-lasting blooms make Verbena bonariensis an excellent cut flower, either fresh or dried. The dainty blooms add texture to bouquets, while the stems hold well in arrangements. 

Transplant seedlings into a sunny, sheltered spot once all risk of frost has passed, spacing plants 30–45 cm apart. Verbena bonariensis prefers well-drained soil and is drought-tolerant once established. It may self-seed in favourable conditions, returning year after year. Attractive to bees and butterflies, it’s both a beautiful and wildlife-friendly addition to the garden. 

Seeds may benefit from pre-chilling and little or no covering when sown for improved germination results.