How to Propagate dark purple-flowered periwinkle?
Propagate by division in spring or autumn and by semi-hardwood cuttings in summer

dark purple-flowered periwinkle · Vinca minor 'Atropurpurea'
Easy to grow in all but the driest soils. Flowers best in full sun but very useful for shady areas. May have the potential to become a nuisance if not managed well
Propagate by division in spring or autumn and by semi-hardwood cuttings in summer