Description
Despite the common name, rock sea-lavender is not related to the lavenders or to rosemary but is a perennial herb with small violet-blue flowers with five petals in clusters. flourishes in saline soils, so are therefore common near the western coasts and in salt marshes, and also on saline, gypsum and alkaline soils such as found on Flat Holm island in Wales, UK.
By Kurt Stüber