A biennial that grows to a height of 2ft (60cm). The leaves are ferny and it has white flowers. The flowers produce the seeds, which are the part that is harvested.

It requires a moist fertile soil and a light sunny position. Sow seeds in spring and prune the plants in autumn to give flowers the following summer. Once established it is freely seeding.

To harvest the seeds, cut the plant off at ground level and hang upside down to dry. Shake into a paper bag to harvest and store in airtight jars.

The seeds are used in cooking and are used in pork and goose recipes, with cabbage, carrots and cheese dishes. They are also used in baking and the fresh leaves can be added to salads.