Wlassov's cranesbill 'Blue Star'

a clump-forming herbaceous perennial, 30-60cm high, with deciduous, seven-lobed, velvety leaves, 5-15cm across, which are dark green flushed with brown and which turn red and orange in autumn, and broadly funnel-shaped flowers, 3cm across, of dark bluish-purple with darker violet-purple veins, from early summer to late summer