This is a tall-growing stately plant for the back of the herb plot. Its leaves can be used dried for teas and the stems can be candied for confectionery.
Sow from May to August in open ground in shallow drills, or scatter the seeds directly onto a well-prepared growing site. Do not transplant. The seeds need to be stratified before planting; stratification is artificially overcoming the seeds dormancy. This can be done by folding a piece of kitchen paper towel, moistening it and then placing the seeds in between. This will then need to be keep in a cool climate. You will need to ensure the towel does not dry out.