Verbena officinalis, the common vervain or common verbena, is a perennial herb native to Europe. It grows up to a metre/yard high, with an upright habitus. The lobed leaves are toothed, the delicate spikes hold mauve flowers.
Owing to its name, the Fragrant Granadilla has very fragrant flowers. The flowers are spectacular, 7-10 cm wide, the corona filaments variegated with red, white and purple.