Medicinal herbs lend themselves well to home use, and many of them are easy and fun to grow in your backyard or window box. However, it is important to recognize that they are medicines – some herbs can be taken safely in large amounts; others cannot. It is also very important to be certain, if collecting herbs yourself, that you collect the right plants. The best way is to learn this skill from an expert. Never consume an herb unless you are absolutely sure that you have identified it correctly.

The traditional way to take herbs by mouth is in the form of teas. There are two kinds of herbal teas. The type of tea made with the flowers or leaves of a plant is called infusion. It is made by pouring boiling water over the herb to release the active ingredients. The hard or woody parts of an herb, such as the roots, bark, seeds or berries, need to be simmered in water for some time to bring out the healing constituents. This is known as a decoction. Herbal teas may be consumed hot or cold.

Dosages for teas vary according to your health and age, but the usual amount for adults is one cup three times a day. Elderly people should take half this dose. Before giving herbs to children under 16 years of age, seek professional advice.

Infusion is made rather like ordinary tea. You can make either a whole pot to several doses or a single cup for one dose. To make a pot, pour half a liter of boiling water over 25 grams of dried herb (or 50 grams of fresh). Cover, and leave the tea to infuse for 5 to 10 minutes. Strain and pour into a cup. To make a single cup, put one teaspoon of dried herb (or two teaspoon for fresh) into a cup, pour on boiling water, and leave covered for five minutes. Strain and use.

Decoction is made by simmering hard plant material over low heat. Gently simmer about 25 grams of the herb in half a liter of water for at least 15 minutes. Strain to remove the plant material. Some of the liquid will have evaporated, so add more water until you have half a liter again.