Scarce and beautiful eastern European meadow species that we have had trouble producing because of its tendency to hybridize with pratensis - very many thanks to Tim Vojt for unadulterated seed.. Basal foliaged, with purple-blue, nodding flowers from 2-3’ erect stems in early summer, and occasionally again in autumn. Sun and drainage, especially winter drainage. Protect from slugs! Z3? Quart pot.