A superb compact perennial that forms a sturdy clump of textured and aromatic grey green foliage. Intense deep violet blue flower spikes are produced over a very long period and hold well from late spring to autumn. The flowers attract bees and butterflies and make a bold impact when mass planted. Loves sun and well drained soil and is drought tolerant once established.

Suits borders, cottage gardens, gravel plantings and containers. Trim back spent flower spikes to encourage a second flush of blooms. Hardy. Winter dormant.