Height x Spread: 175cm x 80cm
This plant can be described as a mega herb, but it does not mean it has to be kept solely to a herb garden. It is a biennial, so it will flower and die in its second year.
It has wonderful architectural structure and form, making it a great statement plant in the mixed border towering above other plants. For continuation the best thing is to allow it to seed around and remove unwanted seedlings that are in the wrong place.