Asteraceae: aromatic perennial herb growing to 0.6 m (2ft) by 0.6 m (2ft in), hardy to zone 2, flowers are flat umbels, mostly white with occasional pink flowered individuals occur from June to August, a common sight across Britain in grassy, open habitats and on a wide range of soils. It can be found in both short and rough grasslands such as road verges. Native to Europe, including Britain, north to 71°, and east to western Asia.
The Leaves can be used either raw or cooked, they have a bitter flavour, and make an acceptable addition to mixed salads, but are best used when young. The leaves where once used as a hop-substitute for flavouring and as a preservative for beer .
Yarrow has a high reputation and is widely employed in herbal medicine, administered both internally and externally. It is used in the treatment of a very wide range of disorders but is particularly valuable for treating wounds, stopping the flow of blood, treating colds, fevers, kidney diseases, and menstrual pain.
Seeds germinate freely and can be sown at any time of year when conditions are suitable for growth. Can be quite competitive, producing luxuriant growth on deep fertile soil.