Evergreen upright dense rhizomatous perennial (0.3m x 0.3m) from Greece, Turkey and North Africa. Clump forming narrow dark green leaves. Lavender blue flowers on short stems in winter. Useful planted in clumps for colour; in the perennial garden or mixed with annuals. Divide overcrowded clumps in autumn. Prefers well drained, acidic soil. Protect from wind. Drought tolerant. Flowers are frost sensitive. May flower later in season when planted in shady position.