This is a medicinal plant, very useful, and easily raised. A strong
infusion of the leaves, drank freely for some time by a nervous,
hypochondriacal person, is, perhaps, better than any other medicine. It
is also good in flatulency and fevers.
Its _propagation_ is by slips or roots. It is perennial, affording a
supply for many years. Gather just as the blossoms are appearing, and
dry quickly in a slow oven, or in the shade. Press and do up in white
papers, and keep in a tight, dry drawer, until needed for use.