Biennial flowers commonly survive two growing seasons, usually lasting about two years. They germinate after the winter period in spring and often only develop their root system and leaves in their first year. Only after resting through a period of
dormancy in winter, biennial flowers reach their full size, flower and produce seeds, before they perish in the autumn of their second year.
A lot of our traditional agricultural crops are biennial plants such as carrots, cabbages and leeks. Other beautiful biennial flower plant examples include hollyhocks and the evening primrose.