Use the new flowers and unopened buds, with their stalk and leaf sheath. Pick on a dry sunny day, and avoid any blossoms with a blackish mildew growing on them. The lime blossom season is very short, with the blossoms only at their best for about a week, so if the weather is wet during this time you are better off tincturing the blossom than drying it.
Dry the flowers out of the sun until they are crispy. Once dry, you can remove the larger stalks and store the blossom in paper bags or jars in a cool dark place. If exposed to light, lime blossom will soon deteriorate. If it turns a pinkish colour, it should be discarded.
Use a heaped teaspoonful of dried blossom per cup of boiling water in a teapot, and infuse for about 5 minutes. This is a good evening drink as it will relax without being too sedative. Drink a cupful one to three times a day for anxiety or restlessness. For colds or fevers, drink small amounts of the hot tea throughout the day to soothe, clear catarrh and promote perspiration. Drink cold for hot flushes.