Description
Large, upright deciduous perennial (H 150-180 cm, W 60 cm). Leaves with long petioles, palmate (6-12 cm), 3-5-lobed, with a serrate margin, smooth, green. Flowers numerous, in upright spikes, simple (3-5 cm), dark violet with black center. Flowering period: June-September. Needs fertile, always moist soils.