This mullein is not only decorative but also useful: as the name suggests, it was used to keep cockroaches and other insects away. The biennal plant reaches about one meter in height and blooms during the second year. It prefers rich, dry soils and a temperate climate.
Sow in July into seedling trays or right into the open land. Transplant in August and space at 50 ✕ 50 cm. Blooms in the second year of growth.