The lavender, also called Lavandula tea is a very fragrant and aromatic tea, made with lavender flowers. It is usually mixed with green, black or other herbal teas. As the tea is prepared by adding the boiling water to the flowers a nice fragrance can be perceived in the whole room; it is one of the most fragrant teas. One or two teaspoons per cup of boiling water are sufficient to prepare a tea.
When used alone as lavender tea it is slightly bitter, for this reason usually honey and lemon is added. When lemon (or other acid fruit juice) is added the color changes from pale yellow to pink as is illustrated below. This tea can be enjoyed hot or cold. It is a great summer tea! The pictures below are from a tea package I bought in Taiwan, where the use is very common.
The common lavender species is called Lavandula angustifolia, also called English lavender. Most probably the name lavender comes from the Latin lavāre, of lavō, to wash. In the old days the lavender flowers infusions were added to the water to wash the clothes to give a scent. The word lavender and its variations is used in many languages (e.g. French: lavande; German: lavandel; Spanish: lavanda). In Portuguese lavender is called alfazema, a word with Arabian origin.