As with many of the wild varieties of the garden cultivated culinary herbs, wild clary (Salvia verbenaca) is a member of the labiate family; a family that includes mint, marjoram, thyme, basil and others. Otherwise known as the deadnettle family, it has a number of species of wild herb or flower with common characteristics including tubular flowers, hairy and square stems and pointed, serrated edged leaves.
Wild clary is the most common of the clary species you may find in the wild, my field guide lists six of them but four are clearly escaped cultivars. Wild clary and the rare meadow clary are the only natives ones. Meadow clary is unlikely to be found in Dorset so wild clary is the only one we need to consider. It grows to about two feet tall, produces several stems and each four or five has whorls of purple/blue tubular flowers. The flowers can be seen from June until September and later in this season some seed heads will be seen as well as active flowers. It can be found in bare patches amongst the grassy areas on lime soils, often near the coast.
The scented flowers are popular with bees and, as well as being used as cooking herb the leaves used to be popular in salads. it has medicinal properties and is considered good for stomach disorders although Culpepper suggests uses of it for a whole catalogue of complaints.