20 (30)cm, Caucasus Globe Flower is a winter hardy, evergreen perennial from mountain meadows and rock crevices from Bulgaria to Turkey, Syria, northern Iran, northern Irak and the Caucasus. It makes upright stalks with rich blue flowers above glossy leaves in a basal rosette. Easily cultivated in any rich, well drained soil in a sunny spot. Excellent in the rock garden. USDA climate zone 6. V-VI.