from the leaves and flowering tops is used in lung, nose and throat congestion and catarrhal complaints, and externally it can be applied to bruises, to reduce the swelling and discolouration. An old English country remedy for cuts and wounds suffered while working in the fields was to apply a poultice of bruised hyssop leaves and sugar in order to reduce the risk of tetanus infection. An essential oil made from hyssop increases alertness and is a gently relaxing nerve tonic suitable for treating nervous exhaustion, overwork, anxiety and depression. The Herb Society's "Complete Medicinal Herbal" cautions however that "the essential oil contains the ketone pino-camphone which in high doses can cause convulsions. Do not take more than the recommended dose. Hyssop also attracts bees, hoverflies and butterflies, thus has a place in the wild garden as well as being useful in controlling pests and encouraging pollination without the use of unnatural methods. Hyssop is also used as an ingredient in eau de Cologne, and in the liqueur Chartreuse.
Hyssop leaves can be preserved by drying. They should be harvested on a dry day at the peak of their maturity and the concentration of active ingredients is highest. They should be dried quickly, away from bright sunlight in order to preserve their aromatic ingredients and prevent oxidation of other chemicals. Good air circulation is required, such as an airing cupboard with the door left open, or a sunny room, aiming for a temperature of 20-32°C. Hyssop leaves should dry out in about six days, any longer and they will begin to discolour and lose their flavour. The dried leaves are stored in clean, dry, labelled airtight containers, and will keep for 12-18 months. |
