About Geranium cinereum Cav.
Geranium cinereum, commonly called the ashy cranesbill, is a flowering plant species in the Geraniaceae family that is native to the Pyrenees. It reaches 50 cm (20 in) in both height and width, and is a small perennial that is either deciduous or semi-evergreen. It is most often cultivated for use as low ground cover, in rockeries, or for underplanting beneath larger plants such as roses. Its leaves are deeply divided and grey-green, a trait that gives the species its Latin specific epithet cinereum, which means "ash-grey". It produces flowers in summer; these flowers are striking with black centers and black stamens. This plant grows best in full sunlight, and is hardy to temperatures as low as −15 °C (5 °F). When grown in cultivation in the United Kingdom, the following cultivars from the Cinereum Group have earned the Royal Horticultural Society Award of Garden Merit: 'Ballerina', Blue Sunrise = 'Blogold', 'Giuseppe', and Rothbury Gem = ‘Gerfos’.
