Description
Medium-sized, upright, deciduous perennial (H 80-100 cm, W 30-40 cm). Leaves deeply palmately compound, 5-7-lobed, leaflets very narrow, smooth, slightly glossy, dark green. Flowers in large upright inflorescence, two-lipped (2 cm), dark blue. Flowering period: July-September. Attracts butterflies and bees. Requires fertile, humus-rich, always moderately moist soils.